QJEEAdv22Chd571: JEE Advanced 2022 Chemistry - Class 12 JEEAdv22Chd571 Solution: The compound(s) which react(s) with to give boron nitride (BN)…

Question

Verified Solution • 2025–26 Session moderate

The compound(s) which react(s) with

\mathrm{NH}_{3}

to give boron nitride (BN) is(are)

Accepted Answer

The compound(s) which react with

\mathrm{NH}_3

to form Boron nitride

(\mathrm{BN})

is/are:

(A) Amorphous

\mathrm{B}+\mathrm{NH}_3 \underset{\text { Tempreature }}{\stackrel{\text { Very high }}{\longrightarrow}} \mathrm{BN}+\mathrm{H}_2

(B)

\mathrm{B}_2 \mathrm{H}_6+\mathrm{NH}_3 \stackrel{\text { High Temp. }}{\longrightarrow}(\mathrm{BN})_{\mathrm{x}}

(C)

\mathrm{B}_2 \mathrm{O}_3+2 \mathrm{NH}_3 \stackrel{900^{\circ} \mathrm{C}}{\longrightarrow} 2 \mathrm{BN}+3 \mathrm{H}_2 \mathrm{O}

(D)

\mathrm{HBF}_4+\mathrm{NH}_3 \longrightarrow\left[\mathrm{NH}_4^{\oplus}\right]\left[\mathrm{BF}_4^{\ominus}\right]

Hence,

(A, B, C)

are correct

Step-by-Step Verified Solution