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

Which of the following gases is green in color?

  1. Chlorine

  2. Hydrogen

  3. Krypton

  4. Neon
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Chlorine gas is well known for its distinct pale yellow-green color at room temperature. Hydrogen, Krypton, and Neon are colorless gases.

Multiple choice

What is dry ice?

  1. Liquid nitrogen

  2. ice

  3. Solid carbon dioxide

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

Dry ice is the solid form of carbon dioxide (CO2). It is called 'dry' because it sublimes directly from a solid to a gas without passing through a liquid phase.

Multiple choice

WHAT IS TNT

  1. TRI NITRO TOLUEDINE

  2. TRI NITRO TOLUENE

  3. TETRA NITRO TOLUENE

  4. TETRA NITRO TOLUEDINE
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

TNT stands for Trinitrotoluene. It is a chemical compound with the formula C6H2(NO2)3CH3, widely used as an explosive.

Multiple choice chemistry study of compounds a. hydrogen chloride laboratory method of preparation of hydrochloric acid physical and chemical properties and uses of hydrochloric acid hydrogen chloride: occurrence, preparation, purification and identification

The reaction of moist hydrogen gas with chlorine is explosive in the presence of :

  1. hydrogen

  2. oxygen

  3. darkness

  4. direct sunlight
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The reaction of chlorine with moist hydrogen gas is explosive in case of direct sunlight.

In dark no reaction will take place because for activation light is required.
Hence, $HCl$ is prepared in presence of diffused sunlight.

Multiple choice biomacromolecules biotechnology cell biology and biotechnology biomolecules biology

All organic substances possess

  1. Carbon, Hydrogen and Oxygen

  2. Carbon, Oxygen and Nitrogen

  3. Carbon and Hydrogen

  4. Carbon, Hydrogen, Oxygen and Nitrogen
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
The organic compound contain the element carbon. The carbon atoms are bonded to form a chain or ring which serves as a skeleton to organic molecule. The most of their carbon atoms are also bonded to one or more hydrogen atoms. The organic compounds are chiefly formed by living organisms. They have large molecules with complex structure and high molecular weights. They include carbohydrates, lipids, proteins, nucleotides and nucleic acids
So, the correct answer is 'Carbon and Hydrogen'
Multiple choice zoology bioenergy biogas environmental use of microorganism microbes in waste treatment and biogas

Biogases produced during sewage treatment are 

  1. ${H} _{2}S, \,{N} _{2}, \,{CH} _{4}$
  2. ${CH} _{4}, \,{H} _2{S}, \,{CO} _{2}$
  3. ${CH} _{4}, \,{O} _{2}, \,H _2S$
  4. $H _2S, \,CH _4, \,SO _2$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Biogases produced during sewage treatment are

1.Methane (CH$ _4$)
2.Hydrogen sulfide (H$ _2$S)
3.Carbon-dioxide (CO$ _2$).
So, the correct option is 'CH$ _4$, H$ _2$S, CO$ _2$'.

Multiple choice economics environment pollution strategies to control environmental pollution strategies to control pollution strategies to control environmental pollution and green chemistry

The gas responsible for causing Bhopal tragedy was:

  1. methyl isocyanate

  2. potassium isothiocyanate

  3. sodium isothiocyante

  4. ethyl isothiocyante
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Bhopal disaster or Bhopal gas tragedy was an industrial accident. It happened at a Union Carbide subsidiary pesticide plant in the city of Bhopal, India. On 3 December 1984, the plant released 42 tons of toxic methyl isocyanate (MIC) gas, exposing more than 500,000 people to toxic gases.

Multiple choice economics environment pollution strategies to control environmental pollution strategies to control pollution strategies to control environmental pollution and green chemistry

Among the following, which gas can be used as a  fuel in the digesting process?

  1. $CO _2$
  2. $CH _4$
  3. $O _2$
  4. $NO$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Methane (CH4) is the primary component of biogas produced during the anaerobic digestion process, making it an effective fuel.

Multiple choice biology concept of life theories of the origin of life origin of life the origin of cells and cell division

Which was absent/ least abundant in the atmosphere at the time of origin of life ?

  1. $NH _3$
  2. $H _2$
  3. $O _2$
  4. $CH _4$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The early Earth's atmosphere was a reducing atmosphere. Free oxygen (O2) was absent or present in only trace amounts because it would have oxidized the organic molecules necessary for the origin of life.

Multiple choice biology concept of life theories of the origin of life origin of life the origin of cells and cell division

Which of the following gases probably least abundant in the early atmosphere?

  1. $H _2$
  2. $0 _2$
  3. $NH _3$

  4. CO
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Scientists believe that the Earth was formed about 4.5 billion years ago. Its early atmosphere was probably formed from the gases given out by volcanoes. It is believed that there was intense volcanic activity for the first billion years of the Earth's existence. The early atmosphere was probably mostly carbon dioxide, with little or no oxygen. There were smaller proportions of water vapour, ammonia and methane. As the Earth cooled down, most of the water vapour condensed and formed the oceans. 
So the correct option is 'O$ _2$'.