Solutions

Q.

Substance which is dissolved in a liquid is called

1. solute

2. solvent

3. solution

4. none of these

Q.

An example of a liquid-liquid mixture is

1. Oil in water

2. Muddy water

3. Smoke

4. Steel

Q.

Give an example of a solution in which solute and solvent are liquid

Q.

Does salt dissolve in cold water?

Q.

A gas that is practically insoluble in water?

Q.

Copper sulphate dissolves in water to give copper sulphate solution. Name a solute, solvent, and solution in the above statement.

Q.

At a particular temperature, a solution which cannot dissolve more solute is called

1. Saturated solution
2. Super saturated solution
3. Aqueous solution
4. Unsaturated solution

Q.

The Process involving the dissolving of sugar in water is called dissolution.

1. True
2. False

Q.

Why do you think oxygen dissolved in water is important for the survival of aquatic animals and plants?

Q.

Differentiate between a saturated and an unsaturated solution.

How will you test whether a given solution is saturated or not?

Q.

The solution in which no more amount of solute can be dissolved in the solvent at a particular temperature is :

1. an unsaturated solution

2. a saturated solution

3. a supersaturated solution

4. a mega-saturated solution

Q. What is solubility?

1. Amount of one solvent dissolved in some other solvent
2. Amount of solute dissolved in a given amount of solvent
3. None of these
4. Amount of solvent dissolved in a given amount of solute

Q. Define saturated solution

Q.

Define solubility? what is the effect of temperature on the solubility of a solid in liquid solution?

Q.

What is a true solution?

1. Sugar solution

2. Blood

3. Starch

4. Ink

Q. Define mixture. Classify the following substances into pure substance and mixture: Sugar solution, soda, oxygen, air, mercury, iron, copper sulphate.

Q.

What would happen to the solubility of the saturated salt solution, with rising temperature?

1. Solubility decreases

2. Solubility increases

3. Solubility remains the same

4. Solubility first increases and then decreases

Q.

Is Salt Water A Colloid?

Q.

Differentiate between the following.

Unsaturated and saturated solution.

Q.

The process of dissolving a substance in a given solvent is called ________.

Q.

Water dissolves different amount of soluble substances in it. True/ False.

1. False

2. True

Q.

Water dissolves different amount of different soluble substances in it.True/ False

1. True

2. False

Q.

Water dissolves different amount of soluble substances in it.

1. False

2. True

Q.

Write pure substance or mixture for the following substances :

Sugar solution

Q. A few substances are arranged in order of increasing force of attraction between their particles. Which one of the following represents a correct arrangement?

1. Milk, Sugar, Air
2. Air, Sugar, Milk
3. Sugar, Milk, Air
4. Air, Milk, Sugar

Q. Balu wants to prepare some lemonade. Help him choose the ingredients to prepare it.

1. Lemon
2. Salt
3. Milk
4. Sugar

Q. Which of the following activities does not involve the use of water?

1. Washing clothes
2. Bathing
3. Cleaning utensils
4. Drying wet clothes

Q.

The component which dissolves is known as______.

Q.

_______ is the amount of solute that can dissolve in 100 mL of water.

Q.

The size of the solute should be ________ for better solubility.