MEDIUM
9th CBSE
IMPORTANT
Earn 100

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

Important Questions on Matter in Our Surroundings

MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Long Answer Type Questions>Q 59

What are the two ways in which the physical states of matter can be changed?

MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Long Answer Type Questions>Q 59
Draw the ‘states of matter triangle’ to show the interconversion of states of matter.
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Long Answer Type Questions>Q 59
How can the evaporation of a liquid be made faster?
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
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Long Answer Type Questions>Q 60
Why does evaporation cool a liquid?
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Multiple Choice Questions (MCQs)>Q 61
Which of the following are also considered to be the states of matter?
(i) Plasma
(ii) Platelets
(iii) BEC
(iv) BHC
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Multiple Choice Questions (MCQs)>Q 73
During summer days, water kept in an earthen pot (pitcher) becomes cool because of the phenomenon of:
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Multiple Choice Questions (MCQs)>Q 75
The conversion of a solid into vapours without passing through the liquid state is called: