MEDIUM
9th CBSE
IMPORTANT
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What happens to the kinetic energy of the particles of a solid when the heat is supplied to the solid at its melting point?

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Important Questions on Matter in Our Surroundings

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.
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 1 - Matter in Our Surroundings>EXERCISES>Q B
The particles in a solid diffuse into one another.
MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 1 - Matter in Our Surroundings>EXERCISES>Q B
Evaporation causes cooling.
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 1 - Matter in Our Surroundings>EXERCISES>Q B
The intermolecular attractive forces in alcohol are stronger than those in water.
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 1 - Matter in Our Surroundings>EXERCISES>Q B
Some materials can exist in all the three states.