JEE PYQ: P Block Elements Question 45
Question 45 - 2019 (08 Apr Shift 1)
Diborane ($\text{B}_2\text{H}_6$) reacts independently with $\text{O}_2$ and $\text{H}_2\text{O}$ to produce, respectively;
(1) $\text{B}_2\text{O}_3$ and $\text{H}_3\text{BO}_3$
(2) $\text{B}_2\text{O}_3$ and $[\text{BH}_4]^-$
(3) $\text{H}_3\text{BO}_3$ and $\text{B}_2\text{O}_3$
(4) $\text{HBO}_2$ and $\text{H}_3\text{BO}_3$
Show Answer
Answer: (1)
Solution
$\text{B}_2\text{H}_6 + 3\text{O}_2 \to \text{B}_2\text{O}_3 + 3\text{H}_2\text{O}$. $\text{B}_2\text{H}_6 + 6\text{H}_2\text{O} \to 2\text{H}_3\text{BO}_3 + 6\text{H}_2$.
BETA
