JEE Main · 2020 · 06 Sep 2020 · Shift 1 · p-Block Elements

The correct statement with respect to dinitrogen is:

(A) $N_{2}$ is paramagnetic in nature
(B)It can combine with dioxygen at $2 5^{\circ} C$ .
(C)Liquid dinitrogen is not used in cryosurgery
(D)It can be used as an inert diluent for reactive chemicals✓ Correct

Answer: (D)

Solution

Dinitrogen is held together by a strong triple bond

N \equiv N

, which makes the molecule very stable and chemically sluggish at ordinary temperatures. Because of this inertness it is used as an inert diluent to moderate reactive chemicals. It is not paramagnetic, it does not combine with dioxygen at

2 5^{\circ} C

, and liquid nitrogen is in fact widely used for cryosurgery, so the only sound statement is that it can serve as an inert diluent for reactive chemicals.

JEE Main · 2020 · 06 Sep 2020 · Shift 1 · Single correct option

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