CBSE Class 4 Science Materials and Solutions MCQs

Question: In a sugar water, ____________ is a solute

a) sugar

b) both

c) water

d) none of these

Answer: sugar

Question: In a sugar water, ____________ is a solvent.

a) water

b) none of these

c) sugar

d) both

Answer: water

Question: Sand is ____________ in water

a) insoluble

b) none of these

c) soluble

d) both

Answer: insoluble

Question: ____________ is soluble in water.

a) salt

b) stone

c) plastic

d) none of these

Answer: salt

Question: What is called universal solvent?

a) water

b) petrol

c) both

d) none of these

Answer: water

Question: Mixture of solute and solvent is called

a) none of these

b) juice

c) sugar

d) both

Answer: none of these

Question: Mud, turmeric, chalk and oil are ____________ in water.

a) insoluble

b) none of these

c) soluble

d) both

Answer: insoluble

Question: In a mixture of sand and water, the sand that settles down is called

a) sediment

b) none of these

c) stone

d) three

Answer: sediment

Question: The process of settling down of heavy insoluble particles in a liquid is called

a) sedimentation

b) decantation

c) filtration

d) none of these

Answer: sedimentation

Question: Separation of tea leaves and water with the help of a sieve is called

a) filtration

b) sedimentation

c) decantation

d) none of these

Answer: filtration

More Questions......................

Question: After sedimentation, carefully pouring out the liquid is called

a) decantation

b) none of these

c) sedimentation

d) filtration

Answer: decantation

Question: Oil soluble in petrol but insoluble in

a) water

b) none of these

c) Kerosin

d) both

Answer: water 

Question: Fizzy drinks are a solution of a gas ____________ in water.

a) carbon dioxide

b) hydrogen

c) oxygen

d) all of these

Answer: carbon dioxide

Question: Fish breathe the gas ____________ dissolved in water

a) carbon dioxide

b) none of these

c) oxygen

d) both

Answer: carbon dioxide

Question: Soluble substances ____________ separate from liquid through filtration

a) cannot

b) both

c) none of these

d) can

Answer: cannot

Question: We use sedimentation and decantation to separate ____________, insoluble particles from a liquid.

a) heavy

b) none of these

c) light

d) both

Answer: heavy

Question: Soluble solid can be obtained from its solution by

a) evaporation

b) both

c) filtration

d) none of these

Answer: evaporation

Question: We get salty from sea water by

a) evaporation

b) filtration

c) both

d) none of these

Answer: evaporation

Question: Floating insoluble solid can be separated from water by

a) decantation

b) evaporation

c) filtration

d) none of these

Answer: decantation

Question: Which things will not dissolve in water?

a) both

b) paper

c) stone

d) none of these

Answer: both

Question: How can you separate iron particles from sand?

a) by magnetic separation

b) by filtration

c) by evaporation

d) none of these

Answer: by magnetic separation

Question: Which gas dissolve in water easily?

a) both

b) oxygen

c) carbon dioxide

d) none of these

Answer: both

Question: What happen when you mix water and cooking oil?

a) oil floats on water

b) they mix together

c) water floats on oil

d) they dissolve together

Answer: oil floats on water

Question: Sea water us a solution of ____________ in water.

a) salt

b) none of these

c) sand

d) both

Answer: salt