Refer to CBSE Class 8 Science Materials Metals and Non Metals MCQs provided below available for download in Pdf. The MCQ Questions for Class 8 Science with answers are aligned as per the latest syllabus and exam pattern suggested by CBSE, NCERT and KVS. Multiple Choice Questions for Chapter 4 Materials Metals and Non Metals are an important part of exams for Class 8 Science and if practiced properly can help you to improve your understanding and get higher marks. Refer to more Chapter-wise MCQs for CBSE Class 8 Science and also download more latest study material for all subjects
MCQ for Class 8 Science Chapter 4 Materials Metals and Non Metals
Class 8 Science students should refer to the following multiple-choice questions with answers for Chapter 4 Materials Metals and Non Metals in Class 8.
Chapter 4 Materials Metals and Non Metals MCQ Questions Class 8 Science with Answers
Question. The property of metals by which they can be beaten into thin sheets is called ____
a) Ductility
b) Sheetability
c) Metallic
d) Malleability
Answer : D
Question. The property of metal by which it can be drawn into wires is called ______
a) Ductility
b) Sheetability
c) Metallic
d) Malleability
Answer : A
Question. The metal found in liquid state is
a) Iron
b) Aluminium
c) Mercury
d) Gold
Answer : C
Question. When a copper vessel is exposed to moist air for long, it acquires a dull green coating. The green material is a mixture of
a) Copper oxide and Copper Nitrate
b) Copper hydroxide & Copper Carbonate
c) Copper carbonate and Copper sulphate
d) Copper hydroxide and Copper Nitrate
Answer : B
Question. When sulphur dioxide is dissolved in water __________ is formed.
a) Sulphuric acid
b) Sulphoxy acid
c) Sulphurous acid
d) Sulphur trioxide
Answer : C
Question. Sodium metal is stored in
a) water
b) Kept under open air
c) alcohol
d) Kerosene
Answer : D
Question. Phosphorus is stored in
a) water
b) Kept under open air
c) alcohol
d) Kerosene
Answer : A
Question. Since metals produce ringing sounds, they are said to be ____.
a) Sound metal
b) Sonorous
c) Ring metal
d) malleable
Answer : B
Question. A substance which cannot be broken down further by chemical reactions, by cooling, heating, or by electrolysis, is called ______
a) Metal
b) Non Metal
c) Element
d) Compound
Answer : C
Question. They are not sonorous and are poor conductors of heat and electricity. These materials are
a) elements
b) Metals
c) Compound
d) Non metals
Answer : A
Question: When non-metals react with water then
a) Non-metals do not react with water
b) Hydrogen gas is formed
c) Carbon dioxide gas is formed
d) None of the options
Answer : A
Question: The metal which can be cut with a knife
a) Sodium and potassium
b) Barium and calcium
c) Sodium and mercury
d) Potassium and calcium.
Answer : A
Question: Metal oxides are of nature
a) Basic
b) Acidic
c) Netural
d) None of the options
Answer : A
Question: All metals are solids except
a) Mercury
b) Sodium
c) Calcium
d) Hydrogen
Answer : A
Question: Materials around us can be classified into
a) Metals and non-metals
b) Elements and compounds
c) Acids and bases
d) None of the options
Answer : A
Question: The non-metal which is liquid at room temperature is:
a) Bromine
b) Carbon
c) Iodine
d) Chlorine
Answer : A
Question: The metal which is stored in kerosene:
a) Sodium
b) Phosphorus
c) Magnesium
d) Magnesium
Answer : A
Question: Non-metals are:
a) Generally solids and gases
b) Generally liquids
c) Generally gases
d) Generally gases and liquids.
Answer : A
Question: The liquid metal at room temperature
a) Mercury
b) Bromine
c) Sodium
d) Gold
Answer : A
Question: The most reactive metal is:
a) Potassium
b) Iron
c) Gold
d) Zinc
Answer : A
Question: What is the product when sulphur reacts with oxygen?
a) Sulphur dioxide
b) Sulphurous acid
c) Sulphuric acid
d) Sulphur trioxide
Answer : A
Question: The solution of ash of magnesium ribbon is
a) Basic
b) Acidic
c) Neutral
d) All of the options
Answer : A
Question: Which metal is found in liquid state t room temperature?
a) Hg
b) Zn
c) Fe
d) Al
Answer : A
Question: The metals that produce ringing sounds, are said to be
a) Sonorous
b) Malleable
c) Lustrous
d) Hard
Answer : A
Question: The property of metal by which it can be drawn into wires is called
a) Ductility
b) Decorating
c) Malleability
d) Conductivity
Answer : A
Question: Which one of the following is a good conductor of electricity?
a) Iron
b) Plastic
c) Wood
d) Glass
Answer : A
Question: All materials shown property of malleability expect
a) Graphite
b) Iron
c) Aluminium
d) Silver
Answer : A
Question: The property of metals by which they can be beaten in to thin sheets is called
a) Malleability
b) Ductility
c) Conduction
d) Expansion
Answer : A
Question: Which one of the following is metal?
a) Na
b) N
c) O
d) C
Answer : A
Question: Which one of the following is non metal?
a) N
b) Fe
c) Al
d) Zn
Answer : A
Question: Which gas are produced when metal react with acids
a) Hydrogen
b) Carbon dioxide
c) Nitrogen
d) Oxygen
Answer: Hydrogen
Question: What is the chemical formula of copper sulphate?
a) Cuco3
b) Cuso4
c) Cucl2
d) Cuo
Answer: Cuco3
Question: Which non-metal catches fire if the exposed to air
a) Phosphorous
b) Sodium
c) Calcium
d) Uranium
Answer: Phosphorous
Question: Which metal is present in Calcium Hydroxide?
a) Ca
b) C
c) O
d) H
Answer: Ca
Question: Which one of the following metal reacts vigorously with oxygen and water?
a) Sodium
b) Potassium
c) Calcium
d) Magnesium
Answer: Sodium
Question: Sodium metal is stored in
a) Kerosene
b) Water
c) Alcohol
d) Ether
Answer: Kerosene
Question: Oxides of non metals are _______
a) Acidic
b) Basic
c) Neutral
d) All of the options
Answer: Acidic
Question: The sulphuric acid turns blue litmus paper into
a) Red
b) Green
c) Yellow
d) Dark blue
Answer: Red
Question: What is the chemical formula of sulphurous acid
a) H2SO3
b) H2SO4
c) SO2
d) SO3
Answer: H2SO3
Question: When sulphur dioxide is dissolve in water then
a) Sulphuric acid is formed
b) Sulphurous acid is formed
c) Sulphur trioxide is formed
d) Sulphur is formed
Answer: Sulphuric acid is formed
Question: Which one of the following is applied on wounds as an antiseptic?
a) Non metals
b) Metals
c) Metalloids
d) All of the options
Answer: Non metals
Question: Non metals used in
a) Fertilisers
b) Aeroplanes
c) Making machinery
d) Water boilers
Answer: Fertilisers
Question: Which non metal is essential for our life and inhale during breathing?
a) O
b) H
c) C
d) N
Answer: O
Question: Which gas produced by piece of burning charcoal?
a) CO
b) CO2
c) H2S
d) O2
Answer: CO
Question: On burning metals react with oxygen to produce
a) Metal oxide
b) Metal sulphate
c) Metal chloride
d) Metal hydroxide
Answer: Metal oxide
Question: What happens when dilute sulphuric acid is poured on a copper plate?
a) Copper sulphate formed
b) Zinc sulphate formed
c) Copper chloride formed
d) Zinc sulphate formed
Answer: Copper sulphate formed
Question: Which of the following statements are correct?
a) Generally metals are ductile
b) Some metals are ductile
c) All metals are ductile
d) All non metals are ductile
Answer: Generally metals are ductile
Question: Which of the following can be beaten in to thin sheets?
a) Zinc
b) Phosphorus
c) Sulphur
d) Oxygen
Answer: Zinc
Question: Which one of the following gas burns with the pop - sound?
a) Hydrogen
b) Oxygen
c) Chlorine
d) Hydrogen sulphide
Answer: Hydrogen
Question: Which one of the following does not react with acids?
a) O
b) Cu
c) Ni
d) Cr
Answer: O
Question: Which substance is present in fuel?
a) Carbon
b) Copper
c) Iron
d) Gold
Answer: Carbon
Question: Which one of the following cant be drawn into wires?
a) Coal
b) Cu
c) Al
d) Fe
Answer: Coal
Question: Which one of the following metal is used thermometers?
a) Mercury
b) Copper
c) Aluminium
d) Iron
Answer: Mercury
Question: Gold is used in
a) Jewellery
b) Thermometers
c) Fuel
d) Machinery
Answer: Jewellery
Question: Which material is hard in nature?
a) Iron
b) Coal
c) Oxygen
d) Wood
Answer: Iron
Question: Which material show shiny appearance?
a) Aluminium
b) Coal
c) Sulphur
d) Carbon
Answer: Aluminium
Question: Which one of the following is the good conducter of electricity?
a) Iron rod
b) Sulphur
c) Coal piece
d) Wood
Answer: Iron rod
Question: Which one of the following are very reactive non metals
a) Phosphorous
b) Carbon
c) Potassium
d) Sodium
Answer: Phosphorous
Question: Copper sulphate (CuSO4) possesses
a) Blue colour
b) Red colour
c) Green colour
d) Yellow colour
Answer: Blue colour
Question: Which metal is found in plants?
a) Mg
b) Fe
c) Cr
d) CO
Answer: Mg
Question: Moist air is the combination of
a) H2O+CO2+O2
b) H2O+ CO+O2
c) H2O+CO2+H2
d) H2O+O2+H2
Answer: H2O+CO2+O2
Question: Heat conduction is the property of
a) Metal
b) Non-metal
c) Metalloids
d) All of the options
Answer: Metal
Question: Which of the following cant be beaten into sheets?
a) Sulphur
b) Aluminium
c) Iron
d) Zinc
Answer: Sulphur
Question: Hydrogen gas produce when metal react with
a) Base
b) Acid
c) Salt
d) Both acid & base
Answer: Base
Question: Which one of the following is in crackers?
a) Non-metal
b) Metals
c) Semi metals
d) All of the options
Answer: Non-metal
Question: Which one of the following enhances the growth of plants?
a) Fertilisers
b) Industrial gadgets
c) Automobiles
d) Water boilers
Answer: Fertilisers
Question: Which one of the following is used for decorating sweets?
a) Silver foil
b) Aluminium foil
c) Copper foil
d) All of the options
Answer: Silver foil
Question: Aluminium foil used for wrapping
a) Food
b) Clothes
c) Plastic
d) Wires
Answer: Food
Question: Metallic oxides are-
a) Basic in nature
b) Acidic is nature
c) Neutral
d) Either acidic or basic
Answer: Basic in nature
Question: Zinc replaces copper from-
a) Copper sulphate
b) Zinc sulphate
c) Sulphuric acid
d) Copper oxide
Answer: Copper sulphate
Question: Which substance is present in fuel
a) Carbon
b) Gold
c) Iron
d) Copper
Answer : A
Question: Which one of the following cant be drawn into wires
a) Coal
b) Cu
c) Al
d) Fe
Answer : A
Question: Which one of the following metal is used thermometers
a) Mercury
b) Copper
c) Aluminium
d) Iron
Answer : A
Question: Gold is used in
a) Jewellery
b) Machinery
c) Fuel
d) Thermometers
Answer : A
Question: Which material is hard in nature
a) Iron
b) Coal
c) Oxygen
d) Wood
Answer : A
Question: Which material show shiny appearance
a) Aluminium
b) Sulphur
c) Coal
d) Carbon
Answer : A
Question: Which one of the following is the good conducter of electricity
a) Iron rod
b) Sulphur
c) Coal piece
d) Wood
Answer : A
Question: Which one of the following are very reactive non metals
a) Phosphorous
b) Carbon
c) Potassium
d) Sodium
Answer : A
Question: Copper sulphate (CuSO4) possesses
a) Blue colour
b) Green colour
c) Yellow colour
d) Red colour
Answer : A
Question: Which metal is found in plants
a) Mg
b) CO
c) Cr
d) Fe
Answer : A
Question: Which one of the following is applied on wounds as an antiseptic
a) Non metals
b) Metals
c) Metalloids
d) All the options
Answer : A
Question: Non metals used in
a) Fertilisers
b) Water boilers
c) Making machinery
d) Aeroplanes
Answer : A
Question: Which non metal is essential for our life and inhale during breathing
a) O
b) C
c) H
d) N
Answer : A
Question: Which gas produced by piece of burning charcoal
a) CO
b) H2S
c) O2
d) CO2
Answer : A
Question: On burning metals react with oxygen to produce
a) Metal oxide
b) Metal sulphate
c) Metal chloride
d) Metal hydroxide
Answer : A
Question: What happens when dilute sulphuric acid is poured on a copper plate
a) Copper sulphate formed
b) Zinc sulphate formed
c) Copper chloride formed
d) Zinc sulphate formed
Answer : A
Question: Which of the following statements are correct
a) Generally metals are ductile
b) All non metals are ductile
c) Some metals are ductile
d) All metals are ductile
Answer : A
Question: Which of the following can be beaten in to thin sheets
a) Zinc
b) Phosphorus
c) Sulphur
d) Oxygen
Answer : A
Question: Which one of the following gas burns with the pop sound
a) Hydrogen
b) Chlorine
c) Oxygen
d) Hydrogen sulphide
Answer : A
Question: Which one of the following does not react with acids
a) O
b) Cr
c) Ni
d) Cu
Answer : A
Question. Consider The Following Statements And Choose The Incorrect One:
(a) Atom is the smallest part of an element.
(b) An element is a substance which is made up of only one kind of atoms.
(c) An atom of liquid sulphur or vapour forms of sulphur would be different as that of solid sulphur.
(d) Oxygen and nitrogen are two examples of elements.
Answer : C
Question. The metal which is liquid at room temperature is
(a) sodium
(b) bromine
(c) calcium
(d) mercury
Answer : D
Question. Which of the following dissolves in water to form sulphuric acid?
(a) Sulphur dioxide
(b) Sulphur
(c) Sulphur trioxide
(d) Copper sulphate
Answer : C
Question. Which non-metal is used in making glass?
(a) Graphite
(b) Sulphur
(c) Silica
(d) None of these
Answer : C
Question. Brass is an alloy of:
(a) zinc – copper- tin
(b) copper – tin
(c) zinc – copper
(d) zinc – tin
Answer : C
Question. Phosphorus combines with oxygen to form oxides. How many types of oxides are formed by it?
(a) One
(b) Two
(c) Three
(d) Four
Answer : B
Quetion. The best electrical conductor is
(a) gold
(b) copper
(c) silver
(d) aluminium
Answer : C
Question. Non-rpetals
(a) react with water
(b) do not react with water
(c) both (a) and (b)
(d) none of these
Answer : B
Question. The metal which is not corroded by air, water and acid is
(a) copper
(b) zinc
(c) aluminium
(d) gold
Answer : D
Question. Metal are hard but _____ can be cut with a knife
(a) iron
(b) potassium
(c) mercury
(d) magnesium
Answer : B
Question: They are not sonorous and are poor conductors of heat and electricity. These materials are
a) Non metals
b) Metals
c) elements
d) Compound
Answer: Non metals
Question: A substance which cannot be broken down further by chemical reactions, by cooling, heating, or by electrolysis, is called ______
a) Element
b) Metal
c) Non Metal
d) Compound
Answer: Element
Question: Since metals produce ringing sounds, they are said to be ____.
a) Sonorous
b) Sound metal
c) Ring metal
d) Malleable
Answer: Sonorous
Question: Phosphorus is stored in
a) water
b) Kerosene
c) Kept under open air
d) alcohol
Answer: water
Question: Sodium metal is stored in
a) Kerosene
b) Water
c) Kept under open air
d) alcohol
Answer: Kerosene
Question: When sulphur dioxide is dissolved in water __________ is formed.
a) Sulphurous acid
b) Sulphuric acid
c) Sulphoxy acid
d) Sulphur trioxide
Answer: Sulphurous acid
Question: When a copper vessel is exposed to moist air for long, it acquires a dull green coating. The green material is a mixture of
a) Copper hydroxide & Copper Carbonate
b) Copper oxide and Copper Nitrate
c) Copper carbonate and Copper sulphate
d) Copper hydroxide and Copper Nitrate
Answer: Copper hydroxide & Copper Carbonate
Question: The metal found in liquid state is
a) Mercury
b) Iron
c) Aluminium
d) Gold
Answer: Mercury
Question: The property of metal by which it can be drawn into wires is called ______
a) Ductility
b) Sheetability
c) Metallic
d) Malleability
Answer: Ductility
Question: The property of metals by which they can be beaten into thin sheets is called ____
a) Malleability
b) Ductility
c) Sheetability
d) Metallic
Answer: Malleability
Question: What is the product when sulphur reacts with oxygen
a) Sulphur dioxide
b) Sulphur trioxide
c) Sulphurous acid
d) Sulphuric acid
Answer: Sulphur dioxide
Question: The solution of ash of magnesium ribbon is
a) Basic
b) All the options
c) Neutral
d) Acidic
Answer: Basic
Question: Which metal is found in liquid state t room temperature?
a) Hg
b) Zn
c) Fe
d) Al
Answer: Hg
Question: The metals that produce ringing sounds, are said to be-
a) Sonorous
b) Hard
c) Lustrous
d) Malleable
Answer: Sonorous
Question: The property of metals by which they can be beaten in to thin sheets is called
a) Malleability
b) Expansion
c) Ductility
d) conduction
Answer: Malleability
Question: Which one of the following is metal?
a) Na
b) N
c) C
d) O
Answer: Na
Question: Which one of the following is non metal?
a) N
b) Fe
c) Al
d) Zn
Answer: N
Question: All materials shown property of malleability expect
a) Graphite
b) Iron
c) Aluminium
d) Silver
Answer: Graphite
Question: Which one of the following is a good conductor of electricity?
a) Iron
b) Plastic
c) Wood
d) Glass
Answer: Iron
Question: The property of metal by which it can be drawn into wires is called
a) Ductility
b) Conductivity
c) Malleability
d) Decorating
Answer: Ductility
Question: Which gas are produced when metal react with acids
a) Hydrogen
b) Carbon dioxide
c) Nitrogen
d) Oxygen
Answer: Hydrogen
Question: What is the chemical formula of copper sulphate
a) CuCO3
b) CuSO4
c) CuCl2
d) CuO
Answer: CuCO3
Question: Which non-metal catches fire if the exposed to air
a) Phosphorous
b) Sodium
c) Calcium
d) Uranium
Answer: Phosphorous
Question: Which metal is present in Calcium Hydroxide
a) Ca
b) H
c) O
d) C
Answer: Ca
Question: Which one of the following metal reacts vigorously with oxygen and water
a) Sodium
b) Calcium
c) Potassium
d) Magnesium
Answer: Sodium
Question: Sodium metal is stored in-
a) Kerosene
b) Ether
c) Alcohol
d) Water
Answer: Kerosene
Question: ides of non metals are _______ in nature
a) Acidic
b) Neutral
c) Basic
d) All the options
Answer: Acidic
Question: The sulphuric acid turns blue litmus paper into
a) Red
b) Green
c) Yellow
d) Dark blue
Answer: Red
Question: What is the chemical formula of sulphurous acid
a) H2SO3
b) SO3
c) SO2
d) H2SO4
Answer: H2SO3
Question: When sulphur dioxide is dissolve in water then
a) Sulphuric acid is formed
b) Sulphurous acid is formed
c) Sulphur trioxide is formed
d) Sulphur is formed
Answer: Sulphuric acid is formed
Question. Which of the following is not a heavy metal?
(A) Cu
(B) Hg
(C) Pb
(D) K
Answer: D
Question. Gold is mixed with copper to
(A) make gold soft
(B) make gold hard
(C) make gold more yellowish
(D) give gold lustre
Answer: B
Question. Metal surface reacts with oxygen and the moisture present in air and get coated with
(A) oxide
(B) carbonate
(C) hydroxide
(D) any of these
Answer: D
Question. Eating away of metals by water, oxygen and other chemicals is called
(A) carbonisation
(B) amalgamation
(C) oxidation
(D) corrosion
Answer: D
Question. Rusting of iron requires the presence of
(A) Air and water
(B) CO2 and water
(C) O2 and H2
(D) O2 and N2
Answer: A
Question. Al forms
(A) Basic oxide
(B) Amphoteric oxide
(C) Acidic oxide
(D) None of the above
Answer: B
Question. Corrosion of metals can be prevented when contact between metal and_____________ is cut off.
(A) nitrogen
(B) hydrogen
(C) oxygen
(D) carbon
Answer: C
Question. Iron is galvanised when it is dipped in
(A) molten zinc
(B) molten copper
(C) molten carbon
(D) molten gold
Answer: A
Question. The process of giving a coating of__________________to copper or brass is called tinning.
(A) zinc
(B) copper
(C) tin
(D) iron
Answer: C
Question. Metal which reacts vigorously with HCI to produce salt and hydrogen is
(A) Na
(B) Zn
(C) Sn
(D) Pb
Answer: A
Question. Cu + HCl →
(A) react vigorously
(B) no reaction
(C) react modestly
(D) react slowly
Answer: B
Question. The nonmetal capable of gaining as well as losing an electron is
(A) Hg
(B) Ca
(C) Ag
(D) H
Answer: D
Question. The metal with which hydrogen reacts to form metal hydride is
(A) Hg
(B) Ca
(C) Ag
(D) H
Answer: B
Question. Nonmetals combine with oxygen to produce
(A) acidic oxides
(B) basic oxide
(C) amphoteric oxide
(D) none of these
Answer: A
Question. The oxides of nonmetal which is neutral is
(A) SO2
(B) NO2
(C) P2O3
{D)CO
Answer: D
Question. Phosphorus combine with oxygen to form _____ types of oxides.
(A) three
(B) two
(C) one
(D) four
Answer: B
Question. _____________dissolves in water to produce sulphuric acid.
(A) SO2
(B) S
(C) SO3
(D) 2S
Answer: C
Question. Nonmetals + acids ® ?
(A) react slow
(B) react violently
(C) react moderately
(D) no reaction
Answer: D
Question. Nonmetals react with hydrogen to form
(A) covalent compounds
(B) ionic compounds
(C) electrovalent compounds
(D) coordinate compounds
Answer: A
Question. P4 + 6Cl2 →
(A) 2P2Cl6
(B) 4PCl3
(C) PCl6
(D) P2Cl5
Answer: B
Question. Mercury is used in thermometers because
(A) it does not wet the glass
(B) it expands on heating
(C) it is a liquid
(D) all of these
Answer: D
Question. ____________ is used to make photographic films.
(A) sodium chloride
(B) silver bromide
(C) potassium iodide
(D) copper chloride
Answer: B
Question. A crucible used in lab to heat solid at high temperature is made of
(A) sulphur
(B) silicon
(C) graphite
(D) phosphorus
Answer: C
(B) phosphorus
(D) chloride
(B) I2
(D) C
(B) N2
(D) H2
(B) silicon
(D) fluorine
(B) in free state
(D) as a mixture with a compound
(B) Iron
(D) Copper
(B) Gold
(D) Cesium
(B) All minerals are not ores
(D) Some ores are minerals
(B) Zn
(D) Al
(B) magnetite
(D) bauxite
(B) carbonate ore
(D) halide ore
(B) Pyrite
(D) Malachite
(B) Zinc blend and cerrusite
(D) Zinc blend and carnallite
(B) Calcium
(D) iron
(B) MgCO3
(D) PbCO3
(B) CaCl2
(D) NaCI
(B) 7, 8 or 9
(D) 5, 6 or 7
(B) 8, 9 or 10
(D) 5, 6 or 7
(B) anions
(D) do not form ions
(B) neither lose or gain electrons
(D) gain electrons
(B) anions
(D) do not form ions
(B) metalloids
(D) minerals
(B) 6
(D) 8
(B) increases and then decreases
(D) increases
(B) Hg
(D) Sn
(B) Al
(D) Fe
(B) Al
(D) Pb
(B) malleability
(D) strength
(B) silver
(D) sodium
(B) green
(D) brown
(B) phosphorus
(D) carbon
(B) chlorine
(D) diamond
(B) Low melting points
(D) A11 the three
(B) nitrogen
(D) hydrogen
(B) Mg
(D) Fe
(B) Zn
(D) K
(B) Al
(D) Pb
(B) Nickel
(D) Titanium
(B) Malleability
(D) Strength
(B) Silver
(D) Sodium
(B) Chlorine
(D) Diamond
(B) Phosphorus
(D) None
(B) Na
(D) Al
(B) Aluminium
(D) Zinc
(B) extracting metal from its ore
(D) extracting metal from its pure ore
(B) Feldspar
(D) Azurite
(B) to decrease the condcutivity of alumina
(D) none of these
Question. Which of the following is not a heavy metal?
(A) Cu
(B) Hg
(C) Pb
(D) K
Answer : D
Question. Gold is mixed with copper to
(A) make gold soft
(B) make gold hard
(C) make gold more yellowish
(D) give gold lustre
Answer : B
Question. Metal surface reacts with oxygen and the moisture present in air and get coated with
(A) oxide
(B) carbonate
(C) hydroxide
(D) any of these
Answer : D
Question. Eating away of metals by water, oxygen and other chemicals is called
(A) carbonisation
(B) amalgamation
(C) oxidation
(D) corrosion
Answer : D
Question. Rusting of iron requires the presence of
(A) air and water
(B) CO2 and water
(C) O2 and H2
(D) O2 and N2
Answer : A
Question. Al forms
(A) Basic oxide
(B) Amphoteric oxide
(C) Acidic oxide
(D) None of the above
Answer : B
Question. Corrosion of metals can be prevented when contact between metal and_____________ is cut off.
(A) nitrogen
(B) hydrogen
(C) oxygen
(D) carbon
Answer : C
Question. Iron is galvanised when it is dipped in
(A) molten zinc
(B) molten copper
(C) molten carbon
(D) molten gold
Answer : A
Question. The process of giving a coating of__________________to copper or brass is called tinning.
(A) zinc
(B) copper
(C) tin
(D) iron
Answer : C
Question. Metal which reacts vigorously with HCI to produce salt and hydrogen is
(A) Na
(B) Zn
(C) Sn
(D) Pb
Answer : A
Question. Cu + HCl →
(A) react vigorously
(B) no reaction
(C) react modestly
(D) react slowly
Answer : B
Question. The nonmetal capable of gaining as well as losing an electron is
(A) Hg
(B) Ca
(C) Ag
(D) H
Answer : D
Question. The metal with which hydrogen reacts to form metal hydride is
(A) Hg
(B) Ca
(C) Ag
(D) H
Answer : B
Question. Nonmetals combine with oxygen to produce
(A) acidic oxides
(B) basic oxide
(C) amphoteric oxide
(D) none of these
Answer : A
Question. The oxides of nonmetal which is neutral is
(A) SO2
(B) NO2
(C) P2O3
{D) CO
Answer : D
Question. Phosphorus combine with oxygen to form .......... types of oxides.
(A) three
(B) two
(C) one
(D) four
Answer : B
Question. _____________dissolves in water to produce sulphuric acid.
(A) SO2
(B) S
(C) SO3
(D) 2S
Answer : C
Question. Nonmetals + acids → ?
(A) react slow
(B) react violently
(C) react moderately
(D) no reaction
Answer : D
Question. Nonmetals react with hydrogen to form
(A) covalent compounds
(B) ionic compounds
(C) electrovalent compounds
(D) coordinate compounds
Answer : A
Question. P4 + 6Cl2 →
(A) 2P2Cl6
(B) 4PCl3
(C) PCl6
(D) P2Cl5
Answer : B
Question. Mercury is used in thermometers because
(A) it does not wet the glass
(B) it expands on heating
(C) it is a liquid
(D) all of these
Answer : D
Question. ____________ is used to make photographic films.
(A) sodium chloride
(B) silver bromide
(C) potassium iodide
(D) copper chloride
Answer : B
Question. A crucible used in lab to heat solid at high temperature is made of
(A) sulphur
(B) silicon
(C) graphite
(D) phosphorus
Answer : C
Question. The nonmetal used to treat rubber in the process of vulcanisation is
(A) sulphur
(B) phosphorus
(C) carbon
(D) chloride
Answer : A
Question. Match–head contains
(A) N2
(B) I2
(C) P
(D) C
Answer : C
Question. ______________is used in the hydrogenation of vegetable oils.
(A) Cl2
(B) N2
(C) O2
(D) H2
Answer : D
Question. Due to its semiconductor propertics, the nonmetal used in computers, TV, etc. is
(A) carbon
(B) silicon
(C) bromine
(D) fluorine
Answer : B
Question. In the native state of metal, it is present
(A) as a mixture with a metal
(B) in free state
(C) as a mixture with a nonmetal
(D) as a mixture with a compound
Answer : B
Question. Which of the following metal is present in native state?
(A) Platinum
(B) Iron
(C) Potassium
(D) Copper
Answer : A
Question. Which of the following is called as noble metal?
(A) Mercury
(B) Gold
(C) Lithium
(D) Cesium
Answer : B
Question. Which of the following statement is true?
(A) All minerals are ores
(B) All minerals are not ores
(C) All ores are not minerals
(D) Some ores are minerals
Answer : B
Question. Haematite is an ore of
(A) Fe
(B) Zn
(C) Cu
(D) Al
Answer : A
Question. Fe3O4 is the chemical formula of
(A) monazite
(B) magnetite
(C) haematite
(D) bauxite
Answer : B
Question. Copper, which is extracted from cuprite, is a/an
(A) sulphide ore
(B) carbonate ore
(C) oxide ore
(D) halide ore
Answer : C
Question. Which of the following is a carbonate ore of copper?
(A) Cuprite
(B) Pyrite
(C) Copper glance
(D) Malachite
Answer : C
Question. Which of the following are the ores of zinc?
(A) Calamine and zinc blend
(B) Zinc blend and cerrusite
(C) Calomine and siderite
(D) Zinc blend and carnallite
Answer : A
Question. The metal extracted from limestone, marble and chalk is
(A) sodium
(B) Calcium
(C) Aluminium
(D) iron
Answer : B
Question. The chemical formula of bauxite is
(A) CaFeS2
(B) MgCO3
(C) Al2O3·2H2O
(D) PbCO3
Answer : C
Question. Rocksalt is
(A) KCl
(B) CaCl2
(C) MgCl2
(D) NaCI
Answer : D
Question. Metals generally have_________number of electrons in their valence shell.
(A) 1, 2 or 3
(B) 7, 8 or 9
(C) 10, 11 or 12
(D) 5, 6 or 7
Answer : A
Question. Nonmetals contain__________number of electrons in their outmost shell.
(A) 1,2 or 3
(B) 8, 9 or 10
(C) 10, 20 or 30
(D) 5, 6 or 7
Answer : D
Question. Nonmetals form
(A) cations
(B) anions
(C) anions and cation
(D) do not form ions
Answer : B
Question. To become stable, metals
(A) lose or gain electrons
(B) neither lose or gain electrons
(C) lose electrons
(D) gain electrons
Answer : C
Question. Metals tends to form
(A) cations
(B) anions
(C) cations and anions
(D) do not form ions
Answer : A
Question. Antimony and arsenic belong to the category of
(A) metals
(B) metalloids
(C) nonmetals
(D) minerals
Answer : B
Question. Nobles gases do not react because they have _________ electrons in their valence shell.
(A) 3
(B) 6
(C) 1
(D) 8
Answer : D
Question. As we go down in the electrochemical series of metals, the reactivity
(A) decreases and then increases
(B) increases and then decreases
(C) decreases
(D) increases
Answer : C
Question. The element present below hydrogen in electrochemical series is
(A) Mg
(B) Hg
(C) Pb
(D) Sn
Answer : B
Question. The metal which can replace magnesium from its salt is
(A) Ca
(B) Al
(C) Zn
(D) Fe
Answer : A
Question. The most reactive of the following metals is
(A) Ca
(B) Al
(C) Ni
(D) Pb
Answer : A
Question. Metals can be hammered into thin sheets. This property is called
(A) density
(B) malleability
(C) ductility
(D) strength
Answer : B
Question. Metals are malleable and ductile because
(A) metals can shine
(B) metals produce sound
(C) layers of metal atoms can slip over each other
(D) atoms form close clusters
Answer : C
Question. Metal which is the best conductor of electricity
(A) nickel
(B) silver
(C) gold
(D) sodium
Answer : B
Question. The colour of iodine is
(A) violet
(B) green
(C) white
(D) brown
Answer : A
Question. The nonmetal which exhibits yellow colour is
(A) silicon
(B) phosphorus
(C) sulphur
(D) carbon
Answer : C
Question. The nonmetal which is hard is
(A) sulphur
(B) chlorine
(C) graphite
(D) diamond
Answer : D
Question. Which of the following is a property of nonmetals?
(A) Low densities
(B) Low melting points
(C) Poor conductor of electricity
(D) A11 the three
Answer : D
Question. The nonmetal which is a liquid at room temperature is
(A) chlorine
(B) nitrogen
(C) bromine
(D) hydrogen
Answer : C
Question. Metal which does not react with HCI is
(A) Ag
(B) Mg
(C) Al
(D) Fe
Answer : A
Question. Metals are malleable and ductile because
(A) Metals can shine
(B) Metals produce sound
(C) Layers of metal atoms can slip over each other
(D) Atoms form close clusters
Answer : C
Question. The metal which can replace calcium from its salt is
(A) Al
(B) Zn
(C) Fe
(D) K
Answer : D
Question. The most reactive of the following metals is
(A) Ca
(B) Al
(C) Ni
(D) Pb
Answer : A
Question. Which of the following elements is highly resistant to corrosion
(A) Iron
(B) Nickel
(C) Silver
(D) Titanium
Answer : C
Question. Metals can be hammered into thin sheets. This property is called
(A) Density
(B) Malleability
(C) Ductility
(D) Strength
Answer : B
Question. Metal which is the best conductor of electricity
(A) Nickel
(B) Silver
(C) Gold
(D) Sodium
Answer : B
Question. The non-metal which is hard is
(A) Sulphur
(B) Chlorine
(C) Graphite
(D) Diamond
Answer : D
Question. A non-metal used to preserve food stuffs
(A) Nitrogen
(B) Phosphorus
(C) Carbon
(D) None
Answer : C
Question. A metal which is liquid at room temperature is
(A) Hg
(B) Na
(C) K
(D) Al
Answer : A
Question. Which of the following statements is incorrect?
(A) Metals have no lustre
(B) All metal oxides are basic in nature
(C) Metals have 1, 2 or 3 electrons in the outermost shell
(D) Metals are malleable
Answer : A
Question. Which of the following is the second most abundant metal in the earth’s crust?
(A) Copper
(B) Aluminium
(C) Iron
(D) Zinc
Answer : B
Question. Metallurgy is a process of
(A) extracting metal from its mineral
(B) extracting metal from its ore
(C) extracting pure metal from its ore
(D) extracting metal from its pure ore
Answer : C
Question. Matrix is defined as
(A) the unwanted foreign material present in the ore
(B) the flux added to remove the unwanted impurities from ore
(C) the slag formed as a result of the reaction of flux with gangue
(D) the material used in the reduction of metal oxide to metal
Answer : C
Question. Which of the following is not an ore of aluminium?
(A) Cryolite
(B) Feldspar
(C) Bauxite
(D) Azurite
Answer : A
Question. The function of adding cryolite in the extraction of aluminium from pure alumina is
(A) to increase the fusion temperature
(B) to decrease the condcutivity of alumina
(C) to decrease the conductivity of alumina
(D) none of these
Answer : D
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MCQs for Chapter 4 Materials Metals and Non Metals Science Class 8
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