HARD
9th CBSE
IMPORTANT
Earn 100

Give one simple activity/experiment to show: Ammonium chloride sublimes.

Important Questions on Matter in Our Surroundings

MEDIUM
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 1 - Matter in Our Surroundings>Revision Exercise>Q 6

How will you justify that ice, water and steam are not different substances but different states of the same substance?

EASY
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 1 - Matter in Our Surroundings>Revision Exercise>Q 6

Arrange ice, water, and steam in increasing order of interparticle forces.

EASY
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 1 - Matter in Our Surroundings>Revision Exercise>Q 6

Among ice, water, and steam which of these states are regarded as fluids?

HARD
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 1 - Matter in Our Surroundings>Revision Exercise>Q 7
What is evaporation? Discuss three factors on which evaporation depends.
EASY
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 1 - Matter in Our Surroundings>TEST YOURSELF>Q 1
In which state does water exist at 10°C?
MEDIUM
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 1 - Matter in Our Surroundings>TEST YOURSELF>Q 2

Which of the two contains more heat energy: 1kg of water at 100°C or 1kg of steam at 100°C?

EASY
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 1 - Matter in Our Surroundings>TEST YOURSELF>Q 3
Why does perspiration keep our body cool?
EASY
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 1 - Matter in Our Surroundings>TEST YOURSELF>Q 4
A rubber band can change its shape on stretching. Will you classify it as solid or not? Justify your answer.