Solution

Q. What is the difference between miscible and soluble?

Q.

Write short notes on the following: Solute

Q.

Water is known as the _________ because many substances dissolve in it.

1. universal dissolver

2. universal solvent

3. universal solution

4. universal solute

Q.

What is a solute and solvent?

Q.

If the particle size of the solute is large the rate of formation of the solution is faster.

1. True
2. False

Q.

The rate of solubility depends on the size of solute to be dissolved.

1. True
2. False

Q.

Mention three factors affecting the rate of dissolution.

Q.

Tanya dissolves common salt in water. Here common salt is

1. Solute

2. Solvent

3. Universal solvent

4. Solution

Q. Salt can be recovered from its solution by evaporation. Another technique which can be used for the separation of a salt from its solution is :

1. centrifugation
2. sublimation
3. evaporation
4. crystallization

Q. Which process is used to separate a pure solid from a solid-liquid solution?

1. Simple distillation
2. Crystallization
3. Filtration
4. Sedimentation and decantation

Q.

the liquid which are dissolved in water are called?

Q. The solution in which more solute can be dissolved is known as .

1. normal solution
2. temperate solution
3. saturated solution
4. unsaturated solution

Q.

Water dissolves different amount of soluble substances in it.

1. True

2. False

Q.

More amount of solute can be dissolved in the solvent on heating the solution.

1. True
2. False

Q. Why do we separate substances in a mixture?
i) To separate two different but useful components.
ii) To remove useless components.
iii) To remove impurities.

1. Only (i) and (ii) are correct
2. Only (ii) and (iii) are correct
3. Only (i) and (iii) are correct
4. (i), (ii) and (iii), all are correct

Q. Which of the following statements is NOT true?

1. No more salt can be dissolved in a saturated solution of salt water without heating.
2. Salt is separated from seawater by evaporation.
3. Water dissolves different amounts of soluble substances in it.
4. A mixture of milk and water can be separated by filtration.

Q.

Water can dissolve a large number of substances. But in a fixed amount of water, different amounts are dissolved for different substances.

1. True

2. False