Give two examples of heterogeneous mixtures.

Important Questions on Is Matter Around Us Pure?

EASY

9th CBSE

IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 2 - Is Matter Around Us Pure?>Check Point 02>Q 1

What is the composition (in per cent) of brass alloy?

MEDIUM

9th CBSE

IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 2 - Is Matter Around Us Pure?>Check Point 02>Q 2

What is the approximate radius of the particles of a solution?

MEDIUM

9th CBSE

IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 2 - Is Matter Around Us Pure?>Check Point 02>Q 3

A solution of alcohol in water has been prepared by mixing $100 \mathrm{mL}$ of alcohol in $300 \mathrm{mL}$ of water. Calculate the volume percentage of the solution.

HARD

9th CBSE

IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 2 - Is Matter Around Us Pure?>Check Point 02>Q 4

Calculate the mass of water and mass of glucose required to make $250 \mathrm{g} \mathrm{of} 40\%$ solution of glucose.

EASY

9th CBSE

IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 2 - Is Matter Around Us Pure?>Check Point 03>Q 1

List one property of suspension on the basis of solute particles.

EASY

9th CBSE

IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 2 - Is Matter Around Us Pure?>Check Point 03>Q 2

What are ‘suspended particles’?

EASY

9th CBSE

IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 2 - Is Matter Around Us Pure?>Check Point 03>Q 3

By which technique of separation, colloidal particles being separated?

MEDIUM

9th CBSE

IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 2 - Is Matter Around Us Pure?>Check Point 03>Q 4

Define Tyndall effect.