Gases in Everyday Life MCQs with Answers

Which gas shows real behavior?

• A.1 mole of NH3 at 300K and 1 atm occupies volume 22.4 liters
• B.1 mole of He at 300K and 1 atm occupies volume 22.4 liters
• C.1 mole of H2 at 300K and 1 atm occupies volume 22.4 liters
• D.1 mole of O2 at 300K and 1 atm occupies volume 22.4 liters

Past Paper MCQ

The cooling agent that has lower temperature than water ice is solid from?

• A.Oxygen
• B.Nitrogen
• C.Ammonia
• D.Carbon dioxide

Which gas mixture is required in gas welding?

• A.Acetylene and oxygen
• B.Hydrogen and oxygen
• C.Methane and oxygen
• D.Propane and nitrogen

Why is helium commonly used in weather balloons?

• A.It is lighter than air
• B.It is highly flammable
• C.It is the most abundant gas in the atmosphere
• D.It reacts with oxygen to produce lift

Which two gases are primarily found in cooking gas?

• A.Hydrogen and Oxygen
• B.Methane and Ethane
• C.Propane and Butane
• D.Methane and Carbon dioxide

Which of the following factor does not affect the pressure of the gas in a container?

• A.Temperature of the gas
• B.Volume of the container
• C.Container material
• D.Amount of gas

How many balloons of capacity 0.25 dm³ at 1 atm pressure can be filled from a hydrogen gas cylinder of 5 dm³ capacity at 10 atm?

• A.180
• B.250
• C.220
• D.200

Which one has the lowest density at room temperature?

• A.O₂
• B.N₂
• C.H₂
• D.CO₂

The solubility of a gas in water depends upon ?

• A.Temperature
• B.Pressure
• C.Nature of the gas
• D.All of these

The lightest gas which is used for filling party and advertisement balloons is ?

• A.Helium
• B.Hydrogen
• C.Nitrogen
• D.Oxygen