Simplified Chemistry>Air & Atmosphere>Air - A Mixture of Gases

Air - A Mixture of Gases

Author:Viraf J Dalal

7th ICSE

IMPORTANT

Important Questions on Air - A Mixture of Gases

HARD

IMPORTANT

Simplified Chemistry>Air & Atmosphere>Air - A Mixture of Gases> Q 1

Match the following.

List I	List II
1. The constituent of air which is around $0.02 %$ .	A. Nitrogen
2. The constituent of air which is inert or unreactive.	B. Oxygen
3. The constituent of air which is non-combustible, but supports combustion.	C. Sulphur dioxide
4. A pollutant in air responsible for acid rain.	D. Carbon dioxide
5. The main rare gas present in air.	E. Argon

MEDIUM

IMPORTANT

Simplified Chemistry>Air & Atmosphere>Air - A Mixture of Gases> Q 2

State four different properties of a compound & a mixture. With reference to the stated properties give reasons why air is considered a mixture and not a compound.

MEDIUM

IMPORTANT

Simplified Chemistry>Air & Atmosphere>Air - A Mixture of Gases> Q 3

Compare the main components of air i.e. nitrogen, oxygen & carbon dioxide with reference to their density & solubility, nature & reactivity.

MEDIUM

IMPORTANT

Simplified Chemistry>Air & Atmosphere>Air - A Mixture of Gases> Q 4

Tabulate the various components of the air, Including the components with variable composition.

EASY

IMPORTANT

Simplified Chemistry>Air & Atmosphere>Air - A Mixture of Gases> Q 5

State the meaning of the term: Atmosphere.