Chemistry

Chemistry of Gases and Applications

1,190 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 zoology not for breathing not for drinking air pollution and its control air pollution - effects and control environmental issues

Pyrogallol is used in gas analysis because its

  1. Alkaline solution absorbs oxygen

  2. Acidic solution absorbs oxygen

  3. Alkaline solution reacts with carbon dioxide

  4. Acidic solution absorbs nitrogen
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A pyrogallol is also called as 1,2,3-trihydroxybenzene. It is a benzenetriol. It is a reducing agent. It is used as a developer in photography. It is also used as a coupling agent in printing. It undergoes rapid autooxidation in alkaline solution. Hence, its alkaline solution is used in the gas analysis because it absorbs oxygen. 

Thus, the correct answer is 'Alkaline solution absorbs oxygen'.

Multiple choice evs - i food for all improved methods of agriculture receding water table water conservation and irrigation

Odda process is also known as

  1. nitrosulphate process

  2. nitrophosphate process

  3. nitrate process

  4. sulphonitrate process
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The nitrophosphate process (also known as the Odda process) was a method for the industrial production of nitrogen fertilizers, invented by Erling Johnson in the municipality of Odda, Norway, around 1927.

Multiple choice chemistry the s-block elements (alkali and alkaline earth metals) anomalous properties of lithium group 1 elements: alkali metals properties of s block elements

Which nitrate will decompose to give $NO _2$ on heating?

  1. $NaNO _3$
  2. $KNO _3$
  3. $4RbNO _3$
  4. $LiNO _3$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Only $LiNO _3$ gives $NO _2$ on heating. All other nitrates give oxygen.
$4LiNO _3 \, \xrightarrow{\Delta} \, 2Li _2O \, + \, 4NO _2 \, + \, O _2.$
$2NaNO _3 \, \xrightarrow{\Delta} \, 2NaNO _2  \, + \, O _2$

Multiple choice botany energy flow in an ecosystem biogeochemical cycle nutrient cycles species, communities and ecosystems

The reservoir pool for gaseous cycles of matter is

  1. Atmosphere

  2. Hydrosphere

  3. Both (A) and (B)

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

Biogeochemical cycles involves the exchange of minerals between abiotic and biotic components of the biosphere. It is mainly of three types hydrological, gaseous and sedimentary.
Gaseous cycle involves the transportation of matter through the atmosphere. Some examples of the gaseous cycle are carbon cycle, nitrogen cycle, oxygen cycle.
So, the correct answer is option A.

Multiple choice botany energy flow in an ecosystem biogeochemical cycle nutrient cycles species, communities and ecosystems

Which chemical is used in air conditions and refrigerators?

  1. CFCs

  2. Chlorine

  3. Fluorine

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

Chlorofluorocarbons (CFCs) were widely used as refrigerants in air conditioning and refrigeration systems due to their excellent cooling properties. However, they were phased out under the Montreal Protocol because they damage the ozone layer.

Multiple choice zoology environmental factors soil-nature climate factors abiotic components organisms and environment

The phosphorus cycle differs from those of carbon and nitrogen as well as from those of sulphur, oxygen and hydrogen in that it lacks 

  1. Water

  2. Dust particles

  3. Gaseous phase

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The abiotic components which are recycled without any involvement of the gaseous form are known as the sedimentary cycle. The element is present in the form of salts as rocks in the geosphere which is taken up by the plants and then transferred to the animals. The phosphate is generally transferred and used in the form of ATP by the living cells. The remaining abiotic components including sulphur, carbon, oxygen and hydrogen. 

Thus, the correct answer is option C. 

Multiple choice biology environmental factors soil-nature climate factors abiotic components

Which of the following is present in maximum amount in atmosphere ____________.

  1. Oxygen

  2. Nitrogen

  3. Carbon dioxide

  4. Hydrogen
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
78.03% of the atmosphere consists of Nitrogen. Some is being added to it through volcanic eruptions, erosion of sedimentary rocks and recycled through denitrification.
So, the correct answer is 'Nitrogen'
Multiple choice our life and environment geography

A foul-smelling gas known for its rotten egg-like odour called hydrogen sulphide is also emitted from the petroleum refineries.  

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hydrogen sulphide is a common byproduct of petroleum refining and is well-known for its characteristic rotten egg odor.