Soluble or Insoluble

Q.

What is the universal solvent?

Q.

Which separation technique is used for the separation of sodium chloride from its solution in water?

Q. What is the difference between immiscible, insoluble, miscible and soluble

Q.

Name the process used for separating salt and water?

Q. Among the following the colour of water change when is dissolved in water.

1. Baking soda
2. Sugar
3. Milk

Q.

Why is water called the universal solvent? Explain with an example.

Q.

The correct sequence of water purification is:

1. sedimentation, filtration, decantation, chlorination

2. sedimentation, decantation, filtration, chlorination

3. sedimentation, chlorination, decantation, filtration

4. chlorination, sedimentation, decantation, filtration

Q. Which of the following substance is insoluble in water?

1. Salt
2. Sugar
3. Sand
4. Coffee

Q. Which of the following shows the correct order of the subsequent steps in wastewater treatment?
Screening - Grit chamber - ___

1. Sedimentation - Filtration - Chlorination
2. Chlorination - Sedimentation - Filtration
3. Sedimentation - Chlorination - Filtration
4. Chlorination - Filtration - Sedimentation

Q. Identify the process where the water source is allowed to stand in large tanks.

1. Settling
2. Chlorination
3. Oxygenation
4. Filtration

Q. Which of the following can be separated from water by straining it using a cloth?

1. Oil
2. Salt
3. Chalk powder
4. Milk

Q.

All substances dissolve in water.

1. True
2. False

Q.

Comment upon the statement, Water is a universal solvent

Q.

Write true or false for the following statements:salt and air dissolved in water add taste to water

1. True
2. False

Q. During the process of water purification, _____ helps in mixing of air with water.

1. sedimentation
2. oxygenation
3. settling
4. chlorination

Q.

How will you separate sugar from a mixture of sugar and water?

Q. Which of the following can be separated from water by evaporation?

1. Milk
2. Salt
3. Oil
4. Lemon juice

Q. While preparing tea, which of the following does not get completely dissolved in water?

1. Tea leaves
2. Milk
3. None of these
4. Sugar

Q.

Name the process by which following components can be separated:salt and water

Q. Arrange the given water treatment processes in sequential order.

1. 1. Screening 2. Sedimentation 3. Chlorination 4. Filtration
2. 1. Screening 2. Filtration 3. Chlorination 4. Sedimentation
3. 1. Sedimentation 2. Filtration 3. Screening 4. Chlorination
4. 1. Chlorination 2. Filtration 3. Screening 4. Sedimentation

Q. Identify the pair that contains one soluble and one insoluble substance. Explain.
A. Soap and pepper
B. Salt and lemon juice
C. Sugar and salt
D. Chalk powder and sand

Q. WHAT WILL HAPPEN WHEN 2 SPOONS OF MILK IS ADDED TO BOILING SUGAR SOLUTION?

Q. Which of the following when mixed with water form a layer on the surface?

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

Q.

Can you pick the mixture among these options?

1. Sand

2. Oxygen

3. Water

4. Carbon

Q.

State whether the following statements are true or false: Water can be separated from salt by evaporation.

1. True
2. False

Q. Select the things that dissolve completely in water.

Q.

Radha was taking water from the tap when she observed that water was not clear. She collected the water in storage tank and added alum solution to it.

Contextual Question: Why alum is added in water?

Value-Based Question: Mention two values Radha possess?

Q. Which of the following substances dissolve in water?

1. Sugar
2. Lime juice
3. Oil
4. Turmeric powder

Q.

In the treatment of water, solid impurities are allowed to settle to the bottom. This particular stage in the entire purification is called ___

1. Chlorination

2. Sublimation

3. Sedimentation

4. Distillation

Q. Identify the substance(s) that dissolved by water.

1. Salt
2. Honey
3. Sugar
4. All of these