Types of Solutions Based on the Concentration of the Solution

Q.

What is ${\mathrm{H}}_2\mathrm{O}$ full name?

Q. Difference between insoluble and soluble solid

Q.

Define the term Solubility?

Q. To make a saturated solution, 25 grams of sodium chloride is dissolved in 100 grams of water at 293K. Calculate the concentration (mass by mass percentage) at this temperature.

1. 25
2. 20
3. 40
4. 22.5

Q.

Which of the following is a hygroscopic substance?

1. Quicklime

2. Zinc chloride

3. Caustic potash

4. Caustic soda

Q.

Solutions with low concentrations of solutes are ___ solutions.

1. concentrated

2. dilute

3. saturated

4. unsaturated

Q.

A solution that contains a large amount of solute is most likely to be

1. unsaturated

2. dilute

3. concentrated

4. weak

Q.

Is calcium carbonate an alkali?

Q.

Define concentrated solution.

Q. Conductivity of 0.12M cuSo4 solution at 298K is 1.8/100 S/cm. Calculate its equivalent Conductivity.

Q.

State three factors that determine the solubility of a solute.

Q.

The solubility of a salt at different temperatures is tabulated below:
$$\begin{array}{cccccc}\text{Temperature (degree celsius)}& \text{20}& \text{30}& \text{40}& \text{50}& \text{60}\\ \text{Solubility (g per 100 ml)}& \text{34.2}& \text{37.2}& \text{40.1}& \text{42.6}& \text{45.8}\end{array}$$

Deepti takes 50 ml of water and adds 20 g of salt to it. The temperature of the solution is ${20}^{\circ }$C. Choose the correct statement.

1. The salt will dissolve completely to form a saturated solution with no residual.

2. The salt will dissolve to form a saturated solution and some undissolved salt will be left at the bottom.

3. The solution formed will be unsaturated.

4. The salt will dissolve completely and form a supersaturated solution.

Q.

Oil dissolves in water.

1. True

2. False

Q.

In liquid-liquid solutions when solvent-solvent Intermolecular forces are stronger than solvent-solute Intermolecular forces. The process of making the solution is exothermic or endothermic?

Q.

A solution is dilute if it

1. has a little amount of solute dissolved

2. has a lot of solutes dissolved

3. has no solute dissolved

4. has so much solute, no more can be dissolved further

Q. To make a saturated solution, 25 grams of sodium chloride is dissolved in 100 grams of water at 293K. Calculate the concentration (mass by mass percentage) at this temperature.

1. 22.5
2. 25
3. 20
4. 40

Q.

How can a supersaturated solution be prepared from a saturated solution formed at room temperature?

1. by adding more solute as well as heating it

2. by heating the solution

3. by adding more solvent to the solution.

4. by adding more solute

Q.

Give one example of the following:

A solution of two solids

Q.

You add sugar to 50 mL of hot tea and to 50 mL of iced tea. Which cup would have a higher concentration at the room temperature?

1. the hot tea

2. the iced tea

3. Not enough information is given to answer the question

4. The concentrations of the hot tea and the iced tea are the same

Q.

How can a supersaturated solution be prepared from a saturated solution formed at room temperature?

1. By adding more solvent to the solution at the room temperature.

2. By adding more solute to the solution at the room temperature.

3. By adding more solute to the solution at higher temperatures.

4. By increasing the temperature of the solution.

Q.

What will be the azeotropic mixture of the two miscible liquids?

Q. Which of the following gas(es) do not dissolve in water?

1. Carbon dioxide
2. Helium
3. Oxygen
4. Hydrogen

Q.

2. Define the following with an example for each:

(d) Solution

Q.

Carbon tetrachloride does not conduct electricity. Give reason.

Q.

What happens when a saturated solution of sodium chloride prepared at 60$°$C is allowed to cool to room temperature?

Q. Explain the following giving example .

Q.

To make a saturated solution, 15 g of sodium chloride is dissolved in 185g of water at 293K. The Concentration (in mass/mass %) of solution at this temperature is:

1. 15

2. 30

3. 7.5

4. 8

Q.

A mixture of sand, ammonium chloride and sodium chloride is dissolved in water and filtered. The filtrate consists of:

1. Ammonium chloride solution

2. Sodium chloride solution

3. sand and ammonium chloride solution

4. sodium chloride and ammonium chloride solution.

Q.

Is cotton is a solid???

Q. The solubility of the gas in a liquid solution _____ with an increase in temperature.

1. decreases
2. increases
3. remains same
4. none of these