MCQ
Product $(A)$ and $(B)$ respectively are :-


- A

- B

- ✓

- D








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$[A]$ $\mathrm{A} 1\left(\mathrm{CH}_3\right)_3$ 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 $\mathrm{AlCl}_5$
| List$-I ($Molecule$)$ | List$-II($Shape$)$ | ||
| $A.$ | $NH_3$ | $I.$ | Square pyramid |
| $B.$ | $BrF_5$ | $II.$ | Tetrahedral |
| $C.$ | $PCl_5$ | $III$ | Trigonal pyramidal |
| $D.$ | $CH_4$ | $IV$ | Trigonal bipyramida |
| Column $I$ | Column $II$ |
| $(A) \,XX '$ | $(i)$ $T-$shape |
| $(B)\,XX'_3$ | $(ii)$ Pentagonal bipyramidal |
| $(C)\,XX '_5$ | $(iii)$ Linear |
| $(D)\,XX '_7$ | $(iv)$ Square pyramidal |
| $(v)$ Tetrahedral |