Chemistry

Chemistry of Gases and Applications

1,175 Questions

The chemistry of gases covers atmospheric composition, noble gases, and various applications of gas compounds in industrial and biological processes. Understanding the properties of common gases, their reactions, and environmental occurrences is vital for general science sections. Use these questions to practice identifying gases and their specific uses.

Atmospheric gasesNoble gasesGas applicationsChemical compounds

Chemistry of Gases and Applications Questions

Multiple choice

The two gases used in the industrial preparation of sulphuric acid are

  1. carbon dioxide and oxygen

  2. sulphur dioxide and hydrogen

  3. sulphur dioxide and oxygen

  4. sulphur dioxide and chlorine
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Contact process for the industrial production of sulphuric acid involves the oxidation of sulphur dioxide to sulphur trioxide using oxygen, which is then absorbed in water.

Multiple choice

The gas inside an electric bulb is

  1. air

  2. oxygen

  3. nitrogen

  4. carbon dioxide
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Electric bulbs are filled with an inert gas, typically nitrogen or argon, to prevent the tungsten filament from oxidizing and burning out.

Multiple choice

'Fixation of nitrogen' implies

  1. the liquefaction of nitrogen

  2. the conversion of atmospheric nitrogen into useful compounds

  3. the conversion of nitrogen into amines

  4. the solidification of nitrogen gas of the atmosphere
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Nitrogen fixation is the chemical process by which atmospheric nitrogen is converted into ammonia or related nitrogenous compounds in soil or aquatic systems.

Multiple choice

The most abundant gas in the atmosphere is

  1. carbon dioxide

  2. helium

  3. nitrogen

  4. oxygen
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Nitrogen makes up approximately 78% of the Earth's atmosphere, making it the most abundant gas. Oxygen follows at about 21%, with other gases present in much smaller quantities.

Multiple choice

Producer gas consists of

  1. CO + H2

  2. CO + N2

  3. CO2+N2

  4. CO2+H2
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Producer gas is a mixture of carbon monoxide (CO) and nitrogen (N2), produced by passing air over red-hot coke.

Multiple choice

Cooking gas is a mixture of

  1. carbon monoxide and carbon dioxide

  2. butane and propane

  3. methane and ethylene

  4. carbon dioxide and oxygen
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Liquefied Petroleum Gas (LPG), commonly used for cooking, is primarily a mixture of propane and butane.

Multiple choice

The gas used in fire extinguishers is

  1. nitrogen

  2. sulphur dioxide

  3. carbon dioxide

  4. hydrogen
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Carbon dioxide is commonly used in fire extinguishers because it is non-flammable and displaces oxygen, effectively smothering the fire.

Multiple choice

The gases used in the manufacture of ammonia are

  1. nitrogen and oxygen

  2. oxygen and nitric oxide

  3. nitrogen and methane

  4. nitrogen and hydrogen
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Haber process for the manufacture of ammonia involves the reaction of nitrogen gas and hydrogen gas under high pressure and temperature.