Tag: nitrogen gas

Questions Related to nitrogen gas

Nitrogen is used to fill electric bulbs because:

chemistry nitrogen and sulfur nitrogen gas component of air - nitrogen nitrogen

  1. it is lighter than air

  2. it makes the bulb to glow

  3. it does not support combustion

  4. it is non-toxic.

Show answer
Correct Option: C
Explanation:

Nitrogen is used because it doesn't react with the hot filament. Then, it will carry heat away form the filament to cool it.

Nitrogen is relatively inactive element because:

chemistry nitrogen and sulfur nitrogen gas component of air - nitrogen nitrogen

  1. its atoms has a stable electronic configuration

  2. it has low atomic radius

  3. its electronegativity is fairly high

  4. dissociation energy of its molecule is fairly high

Show answer
Correct Option: D
Explanation:

Nitrogen is an inactive element as it has a high bond dissociation energy due to the presence of triple bond $N\equiv N$. Hence, viewed as a non-reactive element.

In the fractional evaporation of liquid air, we use :

chemistry nitrogen and sulfur nitrogen gas component of air - nitrogen nitrogen

  1. Dewar flask

  2. Kjeldahl flask

  3. Claude's apparatus

  4. Ramsay apparatus

Show answer
Correct Option: C
Explanation:

We use Claude's apparatus for the fractional evaporation for the fractional evaporation of liquid air.


Option C is correct.

The V A group clement that doesnt directly react with chlorine :

chemistry nitrogen and sulfur nitrogen gas component of air - nitrogen nitrogen

  1. $N _{2}$

  2. As

  3. Sb

  4. Bi

Show answer
Correct Option: A
Explanation:

$N _2$ does not directly react with chlorine because it is noble unreactive gas at room temperature as its bond dissociation energy is high.


Option A is correct.

Nitrolim is obtained by heating calcium carbide in :

chemistry nitrogen and sulfur nitrogen gas component of air - nitrogen nitrogen

  1. $ \mathrm{H} _{2}$

  2. $ \mathrm{O} _{2}$

  3. $ \mathrm{N} _{2}$

  4. $ \mathrm{N}\mathrm{H} _{3}$

Show answer
Correct Option: C
Explanation:

$ CaC _2 + N _2 \rightarrow CaNCN + C$


Nitrolim is $CaNCN $.

Option C is correct.


The molecular formula of Calcium cyanamide is :

chemistry nitrogen and sulfur nitrogen gas component of air - nitrogen nitrogen

  1. $CaCN _{2}$

  2. $CaCHNH _{2}$

  3. $CaC _{2}N _{2}$

  4. $Ca(CN) _{2}$

Show answer
Correct Option: A
Explanation:

 $CaNCN$ or $CaCN _2$ is the molecular formula of calcium cyanamide. 

Hydride of nitrogen is called:

chemistry nitrogen and sulfur nitrogen gas component of air - nitrogen nitrogen

  1. dinitrogen hydride

  2. urea

  3. ammonia

  4. nitrous hydride

Show answer
Correct Option: C
Explanation:

Hydride of nitrogen is called as ammonia. The molecular formula of ammonia is $NH _3$.

Which of the following is not the application of nitrogen?

chemistry nitrogen and sulfur nitrogen gas component of air - nitrogen nitrogen

  1. Refrigerant

  2. Metallurgy

  3. Match sticks

  4. Electric bulbs

Show answer
Correct Option: C
Explanation:

Liquid nitrogen is a cryogenic liquid. Like dry ice, the main use of liquid nitrogen is as a refrigerant. 

 Nitrogen is used to provide an inert atmosphere in metallurgy to prevent oxidation in certain industrial processes.
You can't fill a bulb with air or combustion of hot tungsten wire at high temperature will take place in presence of oxygen. You can't maintain vacuum either or external atmospheric pressure will break the glass. So, you have to fill it with non-reactive gas like nitrogen.

The explosive compound of $N _2$ is:

chemistry nitrogen and sulfur nitrogen gas component of air - nitrogen nitrogen

  1. $N _2O _5$

  2. $NH _3$

  3. $NF _3$

  4. $NCl _3$

Show answer
Correct Option: D
Explanation:

Nitrogen trichloride $ { NCl } _{ 3 } $ is a dense, volatile, and explosive liquid.

Nitrogen is inert because:

chemistry nitrogen and sulfur nitrogen gas component of air - nitrogen nitrogen

  1. it supports combustion

  2. of low boiling point

  3. of high electronegativity

  4. dissociation energy of its molecule is fairly high

Show answer
Correct Option: D
Explanation:

The triple bond is pretty strong. Therefore, it needs a lot of energy to break those bonds and participate in a reaction. So nitrogen is commonly referred to as and used as an inert gas (high abundance & low cost.) Dissociation energy of its molecule is fairly high.