Question
The compound(s) which react(s) with NH 3 to give boron nitride BN is(are)
JEE Advanced
Chemistry
p Block Elements (Group 15, 16, 17 & 18)
2022
JEE Advanced 2022 (Paper 2)
JEE Advanced Chemistry Question (2022) — Solution
Options
- A. B
- B. B 2 H 6
- C. B 2 O 3
- D. HBF 4
Answer
C. B 2 O 3
Step-by-step solution
The compound(s) which react with NH 3 to form Boron nitride BN is/are: (A) Amorphous B + NH 3 ⟶   Tempreature   BN + H 2 (B) B 2 H 6 + NH 3 excess ⟶   HighTemp .  BN x (C) B 2 O 3 + 2 NH 3 ⟶ 900 ° C 2 BN + 3 H 2 O (D) HBF 4 + NH 3 ⟶ NH 4 ⊕ BF 4 ⊖ Hence, (A,B,C) are correct
Related: Chemistry — p Block Elements (Group 15, 16, 17 & 18) · All PYQ Banks