Separation Techniques in Chemistry: Class 6

Question 1

Which method is best suited for separating small stones and dirt particles from a quantity of rice?

Accepted Answer

Hand-picking

Answer

Threshing

Answer

Winnowing

Answer

Filtration

Question 2

The process of beating harvested crop stalks to separate the grain is known as what?

Accepted Answer

Threshing

Answer

Winnowing

Answer

Sieving

Answer

Sedimentation

Question 3

Which separation method utilizes wind or blowing air to separate lighter components, like husk, from heavier grains?

Accepted Answer

Winnowing

Answer

Evaporation

Answer

Decantation

Answer

Magnetic Separation

Question 4

To separate a mixture of sand and small pebbles, which technique would be most effective?

Accepted Answer

Sieving

Answer

Decantation

Answer

Evaporation

Answer

Hand-picking

Question 5

When insoluble, heavier particles in a liquid mixture settle down to the bottom, this process is called:

Accepted Answer

Sedimentation

Answer

Filtration

Answer

Decantation

Answer

Evaporation

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