Pure Substances and Mixtures; Separation of Mixtures Test

Question 1
1 / -0

Which of the following methods is used to separate stones from rice?

A
Sieving

B
Threshing

C
Winnowing

D
Handpicking

Question 2
1 / -0

Use the following information to answer the next question.

A homogeneous mixture (solution) is one in which the particle size is in the order of atomic or molecular size and the particles are distributed uniformly throughout.

A homogeneous mixture consists of

A
only one phase

B
only one liquid phase

C
more than two phases

D
a liquid and a gaseous phase

Question 3
1 / -0

Use the following information to answer the next question.

Shruti, Priyanka, and Mona were discussing about the process of distillation.

I. Shruti says that distillation is done for liquids that boil without decomposing.

II. Priyanka says that distillation is done for immiscible liquids.

III. Mona says that it is done for liquids having sufficient difference in their boiling points.

Among the three,

A
only Shruti is correct

B
only Priyanka is correct

C
both Shruti and Priyanka are correct

D
both Shruti and Mona are correct

Question 4
1 / -0

Ammonium chloride can be separated from salt present in a mixture by

A
centrifugation

B
distillation

C
condensation

D
sublimation

Question 5
1 / -0

Which of the following statements regarding mixtures is incorrect?

A
A mixture is a combination of two or more substances

B
Each ingredient of a mixture retains its chemical properties and composition

C
The physical properties of a mixture are the same as those of its components

D
Components of a mixture can be separated using physical methods

Question 6
1 / -0

The components of which of the following mixtures are immiscible?

A
Vinegar and water

B
Milk and water

C
Oil and water

D
Ethanol and water

Question 7
1 / -0

Which table correctly lists the mixtures with the separation methods that can be used to separate their components?

A

Mixture Separation process

Pebbles and sand Sieving

Husk and grain seeds Threshing

B

Mixture Separation process

Husk and grain seeds Sieving

Pebbles and sand Winnowing

C

Mixture Separation process

Pebbles and sand Threshing

Husk and grain seeds Winnowing

D

Mixture Separation process

Husk and grain seeds Winnowing

Pebbles and sand Sieving

Question 8
1 / -0

Which of the following mixtures is an example of a homogeneous mixture of metals?

A
Mixture of iron and calcium

B
Mixture of iron and copper

C
Pure iron

D
Brass

Question 9
1 / -0

The method of decantation is used to separate

A
sand and powdered leaves

B
water and kerosene

C
wheat and stones

D
salt and water

Question 10
1 / -0

The pure substances comprise of

A
identical particles.

B
different kinds of particles.

C
equally distributed identical and dissimilar particles.

D
unequally distributed identical and dissimilar particles.

Submit Test

Mixture	Separation process
Pebbles and sand	Sieving
Husk and grain seeds	Threshing

Pure Substances...

Question 1

Sieving

Threshing

Winnowing

Handpicking

Question 2

only one phase

only one liquid phase

more than two phases

a liquid and a gaseous phase

Question 3

only Shruti is correct

only Priyanka is correct

both Shruti and Priyanka are correct

both Shruti and Mona are correct

Question 4

centrifugation

distillation

condensation

sublimation

Question 5

A mixture is a combination of two or more substances

Each ingredient of a mixture retains its chemical properties and composition

The physical properties of a mixture are the same as those of its components

Components of a mixture can be separated using physical methods

Question 6

Vinegar and water

Milk and water

Oil and water

Ethanol and water

Question 7

Mixture Separation process Pebbles and sand Sieving Husk and grain seeds Threshing

Mixture Separation process Husk and grain seeds Sieving Pebbles and sand Winnowing

Mixture Separation process Pebbles and sand Threshing Husk and grain seeds Winnowing

Mixture Separation process Husk and grain seeds Winnowing Pebbles and sand Sieving

Question 8

Mixture of iron and calcium

Mixture of iron and copper

Pure iron

Brass

Question 9

sand and powdered leaves

water and kerosene

wheat and stones

salt and water

Question 10

identical particles.

different kinds of particles.

equally distributed identical and dissimilar particles.

unequally distributed identical and dissimilar particles.

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Question Analysis

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Mixture Separation process

Pebbles and sand Sieving

Husk and grain seeds Threshing

Mixture Separation process

Husk and grain seeds Sieving

Pebbles and sand Winnowing

Mixture Separation process

Pebbles and sand Threshing

Husk and grain seeds Winnowing

Mixture Separation process

Husk and grain seeds Winnowing

Pebbles and sand Sieving