Question # 1

Catalytic converters convert.

Choose an answer

CO to CO2

NO to N2

CO2 to CO

N2 to NO2

Which components are essential for the cormation of photochemical smog.

Choose an answer

NO2 volatile organic compounds sunlight

CO, NO2,CO2

CO2,NO2,Sunlight

Volatile organic compounds,NO2,CO

Higher concentration of CO causes

Choose an answer

Fatigue

Headache

Breathign difficulties

All of these

How many tree are there in the world.

Choose an answer

3.21 trillion

3.21 million

3.04 trillion

3.04 million

The Earth's atmosphere is getting hotter beacuse of.

Choose an answer

Increasig concentration of CO

Increasig concentration of CO2

Increasig concentration of O3

Increasig concentration of SO2

A group of gases hat maintains temperature of atmosphere is

Choose an answer

Oxygen and water vapours

Nitrogen and oxygen

Carbon di oxide and water vapours

Nitrogena nd carbon dixoide

The pereceangage of SO2 released by the combustion of coal and petroleum products is.

Choose an answer

40%

80%

60%

70%

The pH of normal rain water is.

Choose an answer

4 - 6

6 - 7

5 - 6

7- 8

Which is not a poisonous gas.

Choose an answer

CO

Ozone

Carbon di oxide

All of these

The envelope of differente gases around the Earth is called.

Choose an answer

Biosphere

Hydrosphere

Atmosphere

Lithosphere

Which substance remains unafaffected in the catalytic conerer fixed int he exhaust of the atutomobiles.

Choose an answer

NO2

NO

CO2

CO

People of which age groups are most affected by the air pollution .

Choose an answer

Children

Young Adults

Cancer patient

Both children and aged people

Which is not an air pollutant

Choose an answer

SO2

NH3

CO2

CO

More Classes

Other Links

Chemistry 9th Class English Medium Unit 10 Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer