Question : Dry ice is the solid form of_____.

Option 1: carbon dioxide

Option 2: nitrogen

Option 3: oxygen

Option 4: hydrogen

Question : Which is a beta-emitting radioactive isotope of hydrogen that has one proton and two neutrons in its nucleus, making it three times as heavy as a hydrogen nucleus and one and a half times heavier than deuterium?

Option 1: Tritium

Option 2: Protium

Option 3: Hydrogen-4

Option 4: Hydrogen-6

Question : Which of the following gases is used to inflate the car tyres?

Option 1: Nitrogen

Option 2: Argon

Option 3: Hydrogen

Option 4: Carbon dioxide

Question : Which of the following gases is filled into incandescent bulbs to prolong the life of the filament?

Option 1: Ozone

Option 2: Nitrogen

Option 3: Oxygen

Option 4: Carbon Dioxide

Question : Which of the following gases is used in the manufacture of soft drinks?

Option 1: Oxygen

Option 2: Carbon dioxide

Option 3: Carbon monoxide

Option 4: Radon