Solution

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. 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. 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. 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

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.

Water dissolves different amount of soluble substances in it.

1. True

2. False

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