Question # 1

About 99% atmosphere's lies within:

Choose an answer

30 kilometre

35 kilometre

15kilometre

11 kilometre

75% atmosphere mass lies in how many kilometers.

Choose an answer

11 km

30 km

50 km

85 km

Which gas is responsible in warming the atmosphere?

Choose an answer

Nitrogen

Hydrogen

Helium

Fluorine

Mesophere extend forms 50 km to:

Choose an answer

50 km

12 km

60 km

85 km

How much amount of sunlight reaches up to earth and absorbed:

Choose an answer

26%

32%

50%

18%

Carbon monoxide is harmful to us because.

Choose an answer

It paralyses the lungs.

It damages lungs tissues.

It reduces oxygen carrying ability of haemoglobin

It makes the blood coagulate.

Which is not a character of SO₂

Choose an answer

it is a colourless gas

It has irritating smell

It causes suffocation

It do not form sulphuric acid

The smell of photocopies machine is due to the presence of.

Choose an answer

Chlorine gas

Neon gas

Helium gas

Ozone gas.

The process by which atmospheric nitrogen is turned into nitrates in the soil is called.

Choose an answer

Nitration

Fixing

Oxidation

Reduction

Ultraviolet radiations can causes.

Choose an answer

Hepatitis

Asthma

Skin cancer

Night blindness

The pH of water containing CO₂ is

Choose an answer

4-6

5.6-6

6-7

7-8

Ozone layer is not found is

Choose an answer

Upper stratosphere

Mid stratosphere

Lower stratosphere

All of them

Iron and steel structure are damaged by.

Choose an answer

Carbon monoxide

Sulphur dioxide

Methane

Carbon dioxide

More Classes

Other Links

Chemistry 10th Class English Medium Unit 14 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