Question

The correct statement with respect to dinitrogen is:

• A. Liquid dinitrogen is not used in cryosurgery.
• B. ${\mathrm{N}}_2$ is paramagnetic in nature.
• C. It can combine with dioxygen at $25°\mathrm{C}$.
• D. It can be used as an inert diluent for reactive chemicals.

Answer 1

The correct option is D

It can be used as an inert diluent for reactive chemicals.

The correct option is (D):

Explanation for the correct answer:

Introduction to Dinitrogen:

1. It is basically a non-toxic gas and is colorless and has a very low water solubility.
2. And it is basically used in the cryosurgery or cryotherapy because of the liquid Nitrogen
3. Basically dinitrogen is used as the refrigerant for the preservation of the food materials and also it is used in the cryosurgery so it is actually used as the inert diluent for the reactive chemicals.

Explanation to the incorrect answers:

Option (A): Liquid dinitrogen is not used in cryosurgery.

1. The liquid Nitrogen just flows like a needle-like applicator which will create the intense cold that the doctors will use to freeze and just destroy the infected tissue.
2. Hence, the Liquid dinitrogen can be used in the cryosurgery or cryotherapy.

Option (B): ${\mathrm{N}}_2$ is paramagnetic in nature.

1. There is the absence of unpaired electrons due to which ${\mathrm{N}}_2$ is diamagnetic in nature.
2. Because of being diamagnetic in nature it will not show any magnetic properties.

Option (C): It can combine with dioxygen at $25°\mathrm{C}$.

1. At the room temperature that is $25°\mathrm{C}$ Dioxygen doesn't react due to the inertness at this temperature
2. The Dinitrogen will also not react because of the strong bond present between the atoms of Dinitrogen which can not be broken down at the room temperature.
3. It can just react only in the presence of the spark or the lightening.

Therefore, the correct option is (D): It can be used as an inert diluent for reactive chemicals.