Saturated,Unsaturated and Supersaturated Solution

Q.

In a saturated solution, there exists an equilibrium between:

1. solvent and excess of solid

2. solution and excess of solid

3. solid and excess of solvent

4. solid and excess of solution

Q.

When a saturated solution prepared at a higher temperature is cooled, we get:

1. supercooled solution

2. supersaturated solution

3. equilibrium mixture

4. molar solution

Q.

We all love carbonated drinks. We know that carbon dioxide is dissolved in water to make that drink. But if I try to push in more and more carbon dioxide into water at the same temperature, what would happen?

1. It will keep dissolving till infinity.
2. The carbon dioxide molecules will destroy water molecules.
3. After a point, carbon dioxide will become carbon monoxide.
4. After a certain point, carbon dioxide gas simply won't dissolve. It will bubble out.

Q.

Harry Potter wanted to make a supersaturated solution of dragonwood in his potions class. Select from the following which would allow him to make one.
Note: Cauldron is just a vessel.

1. Reduce the volume of water in the cauldron.
2. Increase the temperature of water.
3. Increase the pressure of the gas.
4. Reduce the pressure of the gas.

Q.

Harry: Hey Hermione, does a supersaturated solution made by increasing temperature stay like that forever when left idle in a room?
Hermione gave him a blank look thinking Harry was an idiot.

Why did Hermione think Harry was an idiot?

1. Because supersaturated solutions stay forever once made.
2. Because a solution can never be supersaturated. It is an idealistic phenomenon.
3. Because a supersaturated solution can be formed for a limited time only.
4. Because all solutions are supersaturated.