English Medium Class 9 - CBSE Question Bank Solutions for Science

Define solvent.

What is the difference between solutions and colloids ?

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.