Refer to JEE Chemistry Surface Chemistry MCQs Set B provided below available for download in Pdf. The MCQ Questions for Full Syllabus Chemistry with answers are aligned as per the latest syllabus and exam pattern suggested by JEE (Main), NCERT and KVS. Multiple Choice Questions for Surface Chemistry are an important part of exams for Full Syllabus Chemistry and if practiced properly can help you to improve your understanding and get higher marks. Refer to more Chapter-wise MCQs for JEE (Main) Full Syllabus Chemistry and also download more latest study material for all subjects
MCQ for Full Syllabus Chemistry Surface Chemistry
Full Syllabus Chemistry students should refer to the following multiple-choice questions with answers for Surface Chemistry in Full Syllabus.
Surface Chemistry MCQ Questions Full Syllabus Chemistry with Answers
Question: Hydrolysis of urea is an example of
- a) biochemical catalysis
- b) homogenous catalysis
- c) heterogenous catalysis
- d) zeolite catalysis
Answer: biochemical catalysis
Question: The efficiency of an enzyme in catalysing a reaction is due to its capacity
- a) to lower the activation energy of the reaction
- b) to change the shape of the substrate molecule
- c) to decrease the bond energies of substrate molecule
- d) to form a strong enzyme-substrate complex
Answer: to lower the activation energy of the reaction
Question: What is the role of molybdenum in Haber’s process for manufacture of ammonia?
- a) As a catalytic promoter
- b) As a reactant
- c) As catalytic poison
- d) As a catalyst
Answer: As a catalytic promoter
Question: Which of the following step(s) is/are not involved in the mechanism of adsorption theory of heterogeneous catalyst?
(i) Diffusion of reactants to the surface of the catalyst.
(ii) Sorption of reactant molecules on the surface of the catalyst.
(iii) Occurrence of chemical reaction on the catalyst’s surface through formation of an intermediate.
(iv) Desorption of reaction products from the catalyst’s surface.
(v) Diffusion of reaction products away from the catalyst’s surface.
- a) (ii) only
- b) (i) only
- c) (ii) and (iv)
- d) (i), (ii) and (v)
Answer: (ii) only
Question: Which of the following equation does not represent homogeneous catalysis?
- a)
- b)
- c)
- d) None of these
Answer:
Question: Milk is a colloid in which a
- a) liquid is dispersed in a liquid
- b) solid is dispersed in a liquid
- c) sugar is dispersed in a liquid
- d) gas is dispersed in a liquid
Answer: liquid is dispersed in a liquid
Question: Butter is a colloid formed when
- a) Water is dispersed in fat
- b) None of the above
- c) Fat is dispersed in water
- d) Fat globules are dispersed in water
Answer: Water is dispersed in fat
Question: The size of colloidal particles is between
- a) 10–5 – 10–7 cm
- b) 10–7 – 10–9 cm
- c) 10–9 – 10–11 cm
- d) None of these
Answer: 10–5 – 10–7 cm
Question: An aerosol is a
- a) dispersion of a solid or liquid in a gas
- b) dispersion of a solid in a liquid
- c) dispersion of a liquid in a liquid
- d) solid solution
Answer: dispersion of a solid or liquid in a gas
Question: An example of dispersion of a liquid in a gas is
- a) mist
- b) vegetable oil
- c) milk
- d) foam
Answer: mist
Question: Alloy is an example of
- a) solid solution
- b) gel
- c) solidified emulsion
- d) sol
Answer: solid solution
Question: If dispersed phase is a liquid and the dispersion medium is a solid, the colloid is known as
- a) a gel
- b) a foam
- c) a sol
- d) an emulsion
Answer: a gel
Question: Hair cream is an example of
- a) foam
- b) sol
- c) gel
- d) aerosol
Answer: foam
Question: Which one of the following is correctly matched?
- a) Gel-butter
- b) Sol-whipped cream
- c) Emulsion-smoke
- d) Aerosol-hair cream
Answer: Gel-butter
Question: Cheese is an example of
- a) gel
- b) solid sol
- c) emulsion
- d) foam
Answer: gel
More Questions.............................................
Question: Which one of the following in not a colloidal solution?
- a) Air
- b) Ink
- c) Smoke
- d) Blood
Answer: Air
Question: Small liquid droplets dispersed in another liquid is called
- a) emulsion
- b) gel
- c) suspension
- d) true solution
Answer: emulsion
Question: When dispersed phase is liquid and dispersion medium is gas then the colloidal system is called
- a) Clouds
- b) Emulsions
- c) Smoke
- d) Jellies
Answer: Clouds
Question: Which one is a colloid?
- a) Blood
- b) Urea
- c) Sodium chloride
- d) Cane sugar
Answer: Blood
Question: Suspensions are
- a) Visible to naked eye
- b) Not visible by any means
- c) Invisible under electron microscope
- d) Invisible through microscope
Answer: Visible to naked eye
Question: Cloud or fog is an example of colloidal system of
- a) Liquid dispersed in gas
- b) Gas dispersed in gas
- c) Solid dispersed in gas
- d) Solid dispersed in liquid
Answer: Liquid dispersed in gas
Question: A colloid always
- a) Contains two phases
- b) Is a true solution
- c) Contains three phases
- d) Contains only water soluble particles
Answer: Contains two phases
Question: Which one of the following is correctly matched ?
- a) Aerosol - smoke
- b) Emulsion - curd
- c) Foam - mist
- d) Solid sol - cake
Answer: Aerosol - smoke
Question: At the critical micelle concentration (CMC) the surfactant molecules
- a) associate
- b) dissociate
- c) decompose
- d) become completely soluble
Answer: associate
Question: How non-polar and polar part in micelle are arranged ?
- a) Polar at outer surface and non-polar at inner surface
- b) Polar at inner surface and non-polar at outer surface
- c) Both polar and non-polar at inner surface
- d) Distributed all over the surface
Answer: Polar at outer surface and non-polar at inner surface
Question: Surface tension of lyophilic sols is
- a) lower than that of H2O
- b) more than that of H2O
- c) equal to that of H2O
- d) None of these
Answer: lower than that of H2O
Question: Which of the following is a lyophilic colloid ?
- a) Gum
- b) Blood
- c) Milk
- d) Fog
Answer: Gum
Question: Lyophobic colloids are
- a) irreversible colloids
- b) gun proteins
- c) protective colloids
- d) reversible colloids
Answer: irreversible colloids
Question: Which one is an example of multimolecular colloid system
- a) Gold dispersed in water
- b) Protein dispersed in water
- c) Soap dispersed in water
- d) Gum dispersed in water
Answer: Gold dispersed in water
Question: Example of intrinsic colloid is
- a) glue
- b) Fe
- c) sulphur
- d) None of these
Answer: glue
Question: Associated colloid among the following is
- a) sodium stearate
- b) proteins
- c) enzymes
- d) cellulose
Answer: sodium stearate
Question: The formation of micelles takes place only above
- a) Kraft temperature
- b) critical temperature
- c) Boyle temperature
- d) inversion temperature
Answer: Kraft temperature
Question: A precipitate is changed to colloidal solution by the following process
- a) peptization
- b) dialysis
- c) ultrafiltration
- d) electrophoresis
Answer: peptization
Question: Which of the following is used for neutralising charge on colloidal solution?
- a) Electrolytes
- b) Electrons
- c) Positively charged ions
- d) Compounds
Answer: Electrolytes
Question: Pure water can be obtained from sea water by
- a) Reverse osmosis
- b) Centrifugation
- c) Plasmolysis
- d) Sedimentation
Answer: Reverse osmosis
Question: Blood may be purified by
- a) Dialysis
- b) Coagulation
- c) Electro-osmosis
- d) Filtration
Answer: Dialysis
Question: During dialysis
- a) solvent molecules and ions can diffuse
- b) all kinds of particles can diffuse through the semipermeable membrane
- c) solvent molecules, ions and colloidal particles can diffuse
- d) only solvent molecules can diffuse
Answer: solvent molecules and ions can diffuse
Question: The electrolytic impurities of a sol can most easily be separated by
- a) electrodialysis
- b) electrosmosis
- c) dialysis
- d) electrophoresis
Answer: electrodialysis
Question: The formation of colloid from suspension is
- a) Peptisation
- b) Sedimentation
- c) Condensation
- d) Fragmentation
Answer: Peptisation
Question: The separation of colloidal particles from particles of molecular dimensions is known as
- a) dialysis
- b) dispersion
- c) sedimentation
- d) pyrolysis
Answer: dialysis
Question: Which one of the following impurities present in colloidal solution cannot be removed by electrodialysis?
- a) Urea
- b) Sodium chloride
- c) Potassium sulphate
- d) Calcium chloride
Answer: Urea
Question: The migration of dispersion medium under the influence of an electric potential is called
- a) Electroosmosis
- b) Sedimentation
- c) Cataphoresis
- d) Electrophoresis
Answer: Electroosmosis
Question: The movement of colloidal particles towards their respective electrodes in the presence of an electric field is known as :
- a) electrophoresis
- b) Brownian movement
- c) electrolysis
- d) electrodialysis
Answer: electrophoresis
Question: Peptization denotes
- a) Breaking and dispersion into the colloidal state
- b) Precipitation of solid from colloidal dispersion
- c) Hydrolysis of proteins
- d) Digestion of food
Answer: Breaking and dispersion into the colloidal state
Question: Colloidal gold is prepared by
- a) Bredig’s Arc method
- b) Mechanical dispersion
- c) Peptisation
- d) Hydrolysis
Answer: Bredig’s Arc method
Question: Peptization involves
- a) disintegration of colloidal aggregates
- b) evaporation of dispersion medium
- c) impact of molecules of the dispersion medium on the colloidal particles
- d) precipitation of colloidal particles
Answer: disintegration of colloidal aggregates
Question: Hardy-Schulze rule explains the effect of electrolytes on the coagulation of colloidal solution. According to this rule, coagulation power of cations follow the order
- a) Al+3 > Ba+2 > Na+
- b) Ba+2 > Na+ > Al+3
- c) Both
- d) None of these
Answer: Al+3 > Ba+2 > Na+
Question: Tyndall effect is shown by
- a) sol
- b) solution
- c) precipitate
- d) plasma
Answer: sol
Question: The cause of Brownian movement is
- a) the impact of molecules of the dispersion medium on the colloidal particles
- b) attractive forces between the colloidal particles and molecules of dispersion medium
- c) convectional currents
- d) heat changes in liquid state
Answer: the impact of molecules of the dispersion medium on the colloidal particles
Question: When a strong beam of light is passed through a colloidal solution, the light will
- a) be scattered
- b) give a rainbow
- c) be reflected
- d) be refracted
Answer: be scattered
Question: The simplest way to check whether a system is colloidal or not is by
- a) Tyndall effect
- b) Electrodialysis
- c) Brownian movement
- d) Measuring particle size
Answer: Tyndall effect
Question: Which of the following is most effective in causing the coagulation of ferric hydroxide sol?
- a)
- b) KNO3
- c) KCl
- d) K2SO4
Answer:
Question: The ability of an ion to bring about coagulation of a given colloid depends upon
- a) both magnitude and sign of its charge
- b) the sign of its charge
- c) the magnitude of its charge
- d) its size
Answer: both magnitude and sign of its charge
Question: Which of the following electrolytes is least effective in coagulating ferric hydroxide solution?
- a) KBr
- b) K2SO4
- c) K2CrO4
- d) None of these
Answer: KBr
Question: Which of the following acts as protective colloid
- a) Gelatin
- b) Silica gel
- c) Sodium acetate
- d) None of these
Answer: Gelatin
Question: Tyndall effect shown by colloids is due to
- a) scattering of light by the particles
- b) None of these
- c) reflection of light by the particles
- d) coagulation of particles
Answer: scattering of light by the particles
Question: Which of the following is not a property of colloidal solution?
- a) Particle size > 100 nm
- b) Heterogenity
- c) Brownian movement
- d) None of these
Answer: Particle size > 100 nm
Question: Which of the following is most powerful to coagulate the negative colloid?
- a) AlCl3
- b) ZnSO4
- c) Na3PO4
- d) None of these
Answer: AlCl3
Question: The charge on colloidal particles is due to
- a) adsorption of ions from the solution
- b) very small size of particles
- c) presence of electrolyte
- d) None of these
Answer: adsorption of ions from the solution
Question: The ion that is more effective for the coagulation of As2S3 sol is
- a) AI3+
- b) Na+
- c) Ba2+
- d) None of these
Answer: AI3+
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MCQs for Chemistry JEE (Main) Full Syllabus Surface Chemistry
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