Question : Why is carbon monoxide a pollutant?

Option 1: Reacts with haemoglobin

Option 2: Makes the nervous system inactive

Option 3: It reacts with oxygen

Option 4: It inhibits glycolysis

Question : Ultraviolet radiation striking the earth is due to the depletion of

Option 1: Carbon monoxide

Option 2: Carbondioxide

Option 3: Ozone

Option 4: oxygen

Question : The most serious air pollutant causing health harzard is:

Option 1: Sulphur dioxide

Option 2: Carbon monoxide

Option 3: Ozone

Option 4: Nitrogen oxide

Question : Which of the following is most important for absorption of heat radiated from the Sun as well as from the Earth?

Option 1: Carbon dioxide

Option 2: Oxygen

Option 3: Carbon monoxide

Option 4: Nitrogen

Question : Fire extinguishers emit which gas?

Option 1: Carbon monoxide

Option 2: Chlorine

Option 3: Carbon dioxide

Option 4: Nitrogen

Question : Which of the following gases is most toxic ?

Option 1: Carbon dioxide

Option 2: Carbon monoxide

Option 3: Sulphur dioxide

Option 4: Chlorine