Question : Chlorine gas is a major component of which of the following?

Option 1: Water

Option 2: Tear gas

Option 3: Liquefied petroleum gas

Option 4: Gobar gas

Question : A solid right circular cylinder and solid hemisphere stand on equal bases and have the same height. The ratio of their whole surface area is:

Option 1: 3 : 2

Option 2: 3 : 4

Option 3: 4 : 3

Option 4: 2 : 3

Question : What is a common name for the substance which irritates lacrimal glands?

Option 1: Tear gas

Option 2: Laughing gas

Option 3: Anaesthetic gas

Option 4: Noble gas

Question : What is the thick fog-like layer in the atmosphere made up of smoke and fog called?

Option 1: Smog

Option 2: Slog

Option 3: Aerosol

Option 4: Suspension

Question : A solid sphere made of wax of radius 12 cm is melted and cast into solid hemispheres of radius 4 cm each. Find the number of such solid hemispheres.

Option 1: 54

Option 2: 27

Option 3: 14

Option 4: 28