JEE PYQ: P Block Elements Question 71
Question 71 - 2019 (10 Jan Shift 2)
The number of 2-centre-2-electron and 3-centre-2-electron bonds in $\text{B}_2\text{H}_6$, respectively, are:
(1) 2 and 1
(2) 4 and 2
(3) 2 and 2
(4) 2 and 4
Show Answer
Answer: (2)
Solution
Structure of $\text{B}_2\text{H}_6$: No. of 2-centre-2-electron bonds $= 4$. No. of 3-centre-2-electron bonds $= 2$.