Solutions, Mixtures And Separation Methods Test

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Solutions, Mixtures And Separation Methods Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following options can be separated from the mixture using sublimation method?

A
Common salt

B
Sulphur

C
Iron filings

D
Camphor
Question 2
1 / -0

Which of the following options can be separated by solvent extraction?

A
Mixture of sulphur and sand

B
Mixture of iron ore and sand

C
Mixture of sand and chalk powder

D
Mixture of KNO₃ and NaCl
Question 3
1 / -0

Which of the following options can be separated by methods of sedimentation and decantation?

A
Mixture of NaCl and H₂O

B
Mixture of sugar and H₂O

C
Mixture of sand and H₂O

D
Mixture of BaSO₄ and H₂O
Question 4
1 / -0

How can mixture of NH₃ and H₂ be separated?

A
By diffusion

B
By heating

C
By preferential liquefaction

D
By separating funnel
Question 5
1 / -0

Which of the following statements is not correct about a true solution?

A
A true solution is highly stable.

B
A true solution scatters light.

C
Size of solute particles in a true solution is equal to or less than 1 nm.

D
Particles of a true solution cannot be seen with a microscope.

Solution

The particles of a true solution are too small to scatter light and hence a true solution does not show Tyndall effect.
Question 6
1 / -0

Which of the following substances is an example of a solution of gas in a liquid?

A
Soda water

B
Vinegar

C
Orange juice

D
Moist air
Question 7
1 / -0

Which of the following substances is heterogeneous in nature?

A
Jelly

B
Coca Cola

C
Salt solution

D
Alcohol
Question 8
1 / -0

Which of the following statements is true about the physical changes and chemical changes?

A
During a chemical change the reactants form the products of equal mass.

B
The physical changes can not be reversed whereas chemical change cannot be reversed.

C
The chemical changes can be reversed whereas physical change cannot be reversed.

D
In physical changes a new substance is formed and energy is either liberated or absorbed.
Question 9
1 / -0

In a mixture of phenol (80%) and water (20%), water is a

A
solvent

B
solute

C
mixture

D
solution
Question 10
1 / -0

Which of the following statements is not true about mixtures?

A
In mixtures there are no chemical combinations or reactions.

B
Each part of mixture retains its own properties.

C
A mixture can be separated into its constituents by physical means.

D
Mixtures combine physically in a definite proportion.

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Re-Attempt Weekly Quiz Competition

Solutions, Mixtures And Separation Methods Test - 2

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Solutions, Mixtures And Separation Methods Test - 2

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Question 1

Common salt

Sulphur

Iron filings

Camphor

Question 2

Mixture of sulphur and sand

Mixture of iron ore and sand

Mixture of sand and chalk powder

Mixture of KNO3 and NaCl

Question 3

Mixture of NaCl and H2O

Mixture of sugar and H2O

Mixture of sand and H2O

Mixture of BaSO4 and H2O

Question 4

By diffusion

By heating

By preferential liquefaction

By separating funnel

Question 5

A true solution is highly stable.

A true solution scatters light.

Size of solute particles in a true solution is equal to or less than 1 nm.

Particles of a true solution cannot be seen with a microscope.

Solution

Question 6

Soda water

Vinegar

Orange juice

Moist air

Question 7

Jelly

Coca Cola

Salt solution

Alcohol

Question 8

During a chemical change the reactants form the products of equal mass.

The physical changes can not be reversed whereas chemical change cannot be reversed.

The chemical changes can be reversed whereas physical change cannot be reversed.

In physical changes a new substance is formed and energy is either liberated or absorbed.

Question 9

solvent

solute

mixture

solution

Question 10

In mixtures there are no chemical combinations or reactions.

Each part of mixture retains its own properties.

A mixture can be separated into its constituents by physical means.

Mixtures combine physically in a definite proportion.

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Mixture of KNO₃ and NaCl

Mixture of NaCl and H₂O

Mixture of sugar and H₂O

Mixture of sand and H₂O

Mixture of BaSO₄ and H₂O