Chemistry MCQs

Question 1

Which one of the following is not a ‘green house gas’ ?

Accepted Answer

Nitrogen

Answer

Chlorofluorocarbons

Answer

Methane

Answer

Carbon dioxide

Question 2

Green house effect is accelerated by

Accepted Answer

All of these

Answer

Deforestation

Answer

Rapid industrialization

Answer

Increased transportation activity

Question 3

Smoke is formed due to

Accepted Answer

Solid dispersed in gas

Answer

Solid dispresed in liquid

Answer

Gas dispresed in solid

Answer

Gas dispersed in gas

Question 4

The increasing abundance of green house gases in atmosphere has led to the following effect except

Accepted Answer

Oxygen fertilization effect

Answer

Global warming

Answer

Depletion of ozone layer in the stratosphere

Answer

Carbon dioxide ferilization effect

Question 5

The source of energy that causes the least global warming is

Accepted Answer

Geothermal energy

Answer

Coal

Answer

Natural Gas

Answer

Petroleum

Question 6

Which of the following fuels causes minimum environmental pollution?

Accepted Answer

Hydrogen

Answer

Diesel

Answer

Kerosene

Answer

Coal

Question 7

Biofertilizers convert nitrogen to ________ .

Accepted Answer

Ammonia

Answer

Nitrates

Answer

Nitrogenase

Answer

Amino acids

Question 8

The elements in the modern Periodic table are arranged according to their

Accepted Answer

Atomic number

Answer

Mass number

Answer

Neutron number

Answer

Atomic Weight

Question 9

Periodic table contains how many periods

Accepted Answer

7

Answer

6

Answer

8

Answer

10