EASY
9th CBSE
IMPORTANT
Earn 100

Name the temperature at which a liquid changes into a gas.

Important Questions on Matter in Our Surroundings

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 1 - Matter in Our Surroundings>Exercise>Q 17

Name one common substance which can be easily changed from one state to another by heating or cooling.

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 1 - Matter in Our Surroundings>Exercise>Q 18
What is sublimation? Name two substances that undergo sublimation.
EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 1 - Matter in Our Surroundings>Exercise>Q 19

What is the name of the process in which: a solid change directly into a gas?

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 1 - Matter in Our Surroundings>Exercise>Q 19

What is the name of the process in which: a gas changes directly into a solid?

MEDIUM
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 1 - Matter in Our Surroundings>Exercise>Q 20
Name the process due to which dry ice changes into carbon dioxide gas.
EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 1 - Matter in Our Surroundings>Exercise>Q 21

Is dry ice the same thing as ordinary ice?

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 1 - Matter in Our Surroundings>Exercise>Q 22

What is the common name of solid carbon dioxide?

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 1 - Matter in Our Surroundings>Exercise>Q 23

State one condition necessary to liquefy gases (other than applying high pressure).