Draw a labelled diagram of the experimental set-up to demonstrate the sublimation of ammonium chloride.

Important Questions on Matter in Our Surroundings

EASY

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Very Short Answer Type Questions>Q 1

What are the conditions for ‘something’ to be called ‘matter’?

MEDIUM

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Very Short Answer Type Questions>Q 2

Name two processes which provide the best evidence for the motion of particles in matter.

MEDIUM

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Very Short Answer Type Questions>Q 3

Which single term is used to describe the mixing of copper sulphate and water kept in a beaker, on its own in which individual ions spread out among water molecules? (Diffusion / Fusion)

MEDIUM

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Very Short Answer Type Questions>Q 4

When sugar is dissolved in water, there is no increase in the volume. Which characteristic of matter is illustrated by this observation?

EASY

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Very Short Answer Type Questions>Q 5

Even two or three crystals of potassium permanganate can impart colour to a very large volume of water. Which characteristic of particles of matter is illustrated by this observation?

MEDIUM

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Very Short Answer Type Questions>Q 6

When an incense stick (agarbatti) is lighted in one corner of a room, its fragrance spreads in the whole room quickly.

Which characteristic of the particles of matter is illustrated by this observation?

HARD

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Long Answer Type Questions>Q 60

What is evaporation? State the various factors which affect evaporation.

MEDIUM