Question : Name the gas used in preparation of bleaching powder

Option 1: oxygen

Option 2: hydrogen

Option 3: nirtogen

Option 4: chlorine

Question : Most commonly used bleaching  agent is

Option 1: Sodium chloride

Option 2: Alcohol

Option 3: Carbon dioxide

Option 4: Chlorine

Question : Which of the following is an inert gas?

Option 1: Hydrogen

Option 2: Nitrogen

Option 3: Oxygen

Option 4: Argon

Question : Which gas does not form the part of atmosphere?

Option 1: Nitrogen

Option 2: Hydrogen

Option 3: Chlorine

Option 4: Carbon dioxide

Question : What is the common name of Caocl2?

Option 1: Baking powder

Option 2: Baking soda

Option 3: Bleaching powder

Option 4: Washin soda