MEDIUM
9th CBSE
IMPORTANT
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During summer months, water kept in an earthen pot becomes cool due to the phenomenon of

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Important Questions on Matter in Our Surroundings

EASY
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 1 - Matter in Our Surroundings>EXERCISES>Q A

Which of the following conditions will increase the evaporation of water?

EASY
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 1 - Matter in Our Surroundings>EXERCISES>Q A

The property to flow is unique to fluids. Which of the following statements is correct?

EASY
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 1 - Matter in Our Surroundings>EXERCISES>Q A

A few substances are arranged in the increasing order of forces of attraction between their particles. Which of the following is a correct arrangement?

MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 1 - Matter in Our Surroundings>EXERCISES>Q A

What happens to the kinetic energy of the particles of a solid when the heat is supplied to the solid at its melting point?

MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 1 - Matter in Our Surroundings>EXERCISES>Q A

The interparticle forces in matter are in the order: gas < liquid < solid. Which of the following is correct?

HARD
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 1 - Matter in Our Surroundings>EXERCISES>Q A
In which of the following conditions, the distance between the molecules of H2 gas would increase?
i. Adding more H2 gas to the container without increasing the volume of the container
ii. Increasing the volume of the container of H2 gas
iii. Some H2 gas leaking out of the container
iv. Increasing pressure on H2 gas contained in a closed container
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 1 - Matter in Our Surroundings>EXERCISES>Q B
Gases can be considered as fluids.
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 1 - Matter in Our Surroundings>EXERCISES>Q B
Gases possess low density.