Secondary Chemistry>Chapter 1 - Matter in Our Surroundings>Questions as per the Guidelines of CBSE>Q 4

MEDIUM

9th CBSE

IMPORTANT

Earn 100

Steam burn is more painful than the burn from hot water. Give reason.

Important Questions on Matter in Our Surroundings

MEDIUM

9th CBSE

IMPORTANT

Secondary Chemistry>Chapter 1 - Matter in Our Surroundings>Questions as per the Guidelines of CBSE>Q 5

Name the physical state of water under each one of the following conditions.
(a) At

25 ° C

and under atmospheric pressure.
(b) At

0 ° C

and under atmospheric pressure.
(c) At

100 ° C

and under atmospheric pressure.

MEDIUM

9th CBSE

IMPORTANT

Secondary Chemistry>Chapter 1 - Matter in Our Surroundings>Questions as per the Guidelines of CBSE>Q 6

Convert the following temperature into Kelvin scale.

25 ° C

MEDIUM

9th CBSE

IMPORTANT

Secondary Chemistry>Chapter 1 - Matter in Our Surroundings>Questions as per the Guidelines of CBSE>Q 6

Convert the following temperature into Kelvin scale.

27 ° C

MEDIUM

9th CBSE

IMPORTANT

Secondary Chemistry>Chapter 1 - Matter in Our Surroundings>Questions as per the Guidelines of CBSE>Q 6

Convert the following temperature into Kelvin scale.

$373 ° C$

MEDIUM

9th CBSE

IMPORTANT

Secondary Chemistry>Chapter 1 - Matter in Our Surroundings>Questions as per the Guidelines of CBSE>Q 7

Convert the following temperature into Celsius scale.

$298 K$

MEDIUM

9th CBSE

IMPORTANT

Secondary Chemistry>Chapter 1 - Matter in Our Surroundings>Questions as per the Guidelines of CBSE>Q 7

Convert the following temperature into Celsius scale.

$746 K$

MEDIUM

9th CBSE

IMPORTANT

Secondary Chemistry>Chapter 1 - Matter in Our Surroundings>Questions as per the Guidelines of CBSE>Q 7

Convert the following temperature into Celsius scale.

$300 K$

HARD

9th CBSE

IMPORTANT

Secondary Chemistry>Chapter 1 - Matter in Our Surroundings>Questions as per the Guidelines of CBSE>Q 1

Give a brief description of an activity to demonstrate that matter is composed of very small particles.