For liquefaction of air or gas

Important Questions on Matter in Our Surroundings

MEDIUM

9th CBSE

IMPORTANT

Essentials of Chemistry>Chapter 1 - Matter in Our Surroundings>Multiple Choice Questions MCQs>Q 21

Ice of $0 °\mathrm{C}$ causes more cooling effect than water of same temperature

EASY

9th CBSE

IMPORTANT

Essentials of Chemistry>Chapter 1 - Matter in Our Surroundings>Multiple Choice Questions MCQs>Q 22

Room temperature $\left(25 °\mathrm{C}\right)$ will be equal to

EASY

9th CBSE

IMPORTANT

Essentials of Chemistry>Chapter 1 - Matter in Our Surroundings>Multiple Choice Questions MCQs>Q 23

In melting process of a solid

EASY

9th CBSE

IMPORTANT

Essentials of Chemistry>Chapter 1 - Matter in Our Surroundings>Multiple Choice Questions MCQs>Q 24

Rate of evaporation will be decreased if

EASY

9th CBSE

IMPORTANT

Essentials of Chemistry>Chapter 1 - Matter in Our Surroundings>Multiple Choice Questions MCQs>Q 25

Intermolecular force is minimum in

EASY

9th CBSE

IMPORTANT

Essentials of Chemistry>Chapter 1 - Matter in Our Surroundings>Multiple Choice Questions MCQs>Q 26

The boiling points of three liquids $\mathrm{A}, \mathrm{B}$ and $\mathrm{C}$ are $47 °\mathrm{C}$, $70 °\mathrm{C}$ and $127 °\mathrm{C}$ respectively. In Kelvin scale the correct sequence of temperature will be

MEDIUM

9th CBSE

IMPORTANT

Essentials of Chemistry>Chapter 1 - Matter in Our Surroundings>Multiple Choice Questions MCQs>Q 27

The condition that will increase the rate of evaporation of water is:

EASY

9th CBSE

IMPORTANT

Essentials of Chemistry>Chapter 1 - Matter in Our Surroundings>Multiple Choice Questions MCQs>Q 28

Four students A, B, C and D visited a Natural Gas Compressing unit and observed the specific conditions of temperature and pressure for the liquefaction of natural gas. They told the following statements about the conditions required for the liquefaction of gas. Which statement is correct?