MCQ
Among the following, the correct statement(s) is(are)

$[A]$ $\mathrm{A} 1\left(\mathrm{CH}_3\right)_3$ has the three-centre two-electron bonds in its dimeric structure

$[B]$ $\mathrm{BH}_3$ has the three-centre two-electron bonds in its dimeric structure

$[\mathrm{C}] \mathrm{AlCl}_3$ has the three-centre two-electron bonds in its dimeric structure

$[D]$ The Lewis acidity of $\mathrm{BCl}_5$ is greater than that of $\mathrm{AlCl}_5$

  • A
    $A,B,C$
  • $A,B,D$
  • C
    $A,B$
  • D
    $A,C$

Answer

Correct option: B.
$A,B,D$
b
Both $\mathrm{Al}\left(\mathrm{CH}_3\right)_3$ and $\mathrm{BH}_3$ has $3 \mathrm{c}-2 \mathrm{e}$ bonds in the dimeric structure.

$\mathrm{BCl}_3$ is stronger Lewis acid than $\mathrm{AlCl}_3$.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free