English Medium Class 9 - CBSE Question Bank Solutions

What is the difference between solutions and colloids ?

In what respects does a true solution differ from a colloidal solution ?

In what respects does a true solution differ from a colloidal solution ?

Classify the following into true solutions and colloidal solutions:

Ink, Salt solution, Starch solution, Blood, Sugar solution

Classify the following into true solutions and colloidal solutions:

Ink, Salt solution, Starch solution, Blood, Sugar solution

How will you test whether a given solution is a colloidal solution ?

How will you test whether a given solution is a colloidal solution ?

Explain what happens when a beam of light is passed through a colloidal solution.

Explain what happens when a beam of light is passed through a colloidal solution.

Explain what happens when a beam of light is passed through a colloidal solution.

Explain what happens when a beam of light is passed through a colloidal solution.

How will you differentiate between a suspension and a colloid ?

How will you differentiate between a suspension and a colloid ?

You have been given a suspension and a solution. How could you tell the difference between them by their appearance ?

You have been given a suspension and a solution. How could you tell the difference between them by their appearance ?

Which of the following will show Tyndall effect ? Why ?

1. Salt solution
2. Starch solution
3. Milk
4. Copper sulphate solution

Which of the following will show Tyndall effect ? Why ?

1. Salt solution
2. Starch solution
3. Milk
4. Copper sulphate solution

Name the different types of solutions. Give one example of each.

Name the different types of solutions. Give one example of each.

Classify the following into solutions, suspensions and colloids :

Soda-water, Milk, Brine, Blood, Ink, Smoke in air, Chalk water mixture, Milk of Magnesia, Shaving cream, Muddy river water.