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 chemistry p- block elements-ii hydrogen chloride chlorine - 17 group p-block elements

A and B are two gases. A is identified with the glass rod dipped in $NH _3$ and $\mathrm{B}$ is identified with the glass rod dipped in $HCl$. Then A and B are :

  1. $\mathrm{H}\mathrm{Cl},\ \mathrm{N}\mathrm{O} _{2}$
  2. $\mathrm{H}\mathrm{Cl},\ \mathrm{N}\mathrm{H} _{3}$
  3. $\mathrm{N}\mathrm{H} _{3}$, H$\mathrm{Cl}$
  4. $\mathrm{N}\mathrm{H} _{3},\ \mathrm{S}\mathrm{O} _{2}$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When glass rod dipped in $NH _3$, it is $HCl$ which reacts to form $NH _4Cl$ and when dipped in $HCl$, it is $NH _3$ which react to form $NH _4Cl$. 

Multiple choice chemistry p- block elements-ii hydrogen chloride chlorine - 17 group p-block elements

$HCl$ gas can fume in moist air.

  1. True

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

Concentrated hydrochloric acid or fuming HCl acid forms acidic mists. Both the mist and the solution have a corrosive effect on human tissue like eyes, skin, intestines etc. This moisture can be prevented during the preparation of HCl by using a guard tube with calcium chloride in it.

Multiple choice chemistry p- block elements-ii hydrogen chloride chlorine - 17 group p-block elements

A piece of zinc may be distinguished from a piece of magnesium by: 
(1) determining which conducts electricity
(2) determining which releases $H _2$ gas from a 1-molar hydrochloric acid solution
(3) measuring the density of each

  1. If 1, 2 and 3 are correct

  2. If only 1 and 2 are correct

  3. If only 2 and 3 are correct

  4. If only 1 is correct

  5. If only 3 is correct
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Both zinc and magnesium conduct electricity. Both zinc and magnesium reacts with hydrochloric acid to give hydrogen gas. They can be distinguished by measuring their densities.

Multiple choice political science law and social justice justice effects of social inequalities and social justice now meeta knows

The gas that was released during Bhopal Gas tragedy is _____________.

  1. Dinitrogen tetroxide

  2. Methyl isocyanate (MIC)

  3. Hydrogen selenide

  4. Nitrogen trioxide
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Bhopal disaster also referred to the Bhopal gas tragedy. It was a gas leak incident on the 3rd December 1984 at the Union Carbide India Limited pesticides plant in Bhopal. Methyl isocyanate (MIC) gas was released during the tragedy. It killed more than three thousand people immediately.

Multiple choice political science law and social justice justice effects of social inequalities and social justice now meeta knows

Which of the following gas leak was the reason for Bhopal Gas Tragedy?

  1. Methyl Cyanate

  2. Ethyl Cyanate

  3. Methyl isocyanate

  4. Ethyl isocyanate
Reveal answer Fill a bubble to check yourself
C 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 tonnes of toxic methyl isocyanate (MIC) gas, exposing more than 500,000 people to toxic gases.

Multiple choice conductivity and its types electrochemistry

The gas leaked from a storage tank of the Union Carbide plant in Bhopal gas tragedy was

  1. methyl isocyanate

  2. methylamine

  3. ammonia

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

The Bhopal gas tragedy was caused by a massive leak of methyl isocyanate (MIC) gas from the Union Carbide pesticide plant in 1984. It is one of the world's worst industrial disasters.

Multiple choice chemistry separation of substances classification of mixtures mixtures: examples and properties types of solutions

Identify the mixture from the following:

  1. Oxygen

  2. Carbon dioxide

  3. Hydrogen

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

The mixture consists of constituents in indefinite proportion. It may change over time. Air has 78% Nitrogen, 21% Oxygen and 1% other constituents such as $CO _2$, water vapour etc. About 100 years ago the proportion of $CO _2$ in the air was about 0.029% and now it is 0.035%. Thus we see that it's proportion has changed.

Multiple choice chemistry endothermic and exothermic reactions endothermic reactions what are enthalpy changes energy change in chemical reactions

The reaction of nitrogen with oxygen to form nitric oxide is :

  1. Exothermic reaction

  2. Endothermic reaction

  3. Thermal balance reaction

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Oxygen and nitrogen do not react at ambient temperatures. But at high temperatures, they undergo an endothermic reaction producing various oxides of nitrogen. Such temperatures arise inside an internal combustion engine or a power station boiler, during the combustion of a mixture of air and fuel, and naturally in a lightning flash.

Multiple choice chemistry p- block elements-ii anomalous properties of nitrogen nitrogen - 15 group group 15 elements

Which of the following gives purest form of nitrogen?

  1. Thermal decomposition of ammonium nitrate

  2. Treating aqueous solution of ammonium chloride with sodium nitrite

  3. Thermal decomposition of sodium or barium azide

  4. Liquefaction and fractional distillation of air
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

$2NaN _3 \rightarrow 2Na +3N _2$ 

Pure nitrogen can be obtained from thermal decomposition of sodium or barium azide.

Multiple choice chemistry p- block elements-ii anomalous properties of nitrogen nitrogen - 15 group group 15 elements

In the commercial preparation of dinitrogen by the liquefaction and fractional distillation,dinitrogen is obtained in:

  1. liquid form

  2. gaseous form

  3. mixture of liquid and gases

  4. none
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In the commercial preparation of dinitrogen by the liquefaction and fractional distillation,dinitrogen is obtained in gaseous form.