p-Block Elements-I 2 Question 22

22. All the $\mathrm{Al}-\mathrm{Cl}$ bonds in $\mathrm{Al}{2} \mathrm{Cl}{6}$ are equivalent.

(1989, 1M)

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Solution:

  1. Due to smaller size of carbon than silicon, $\mathrm{C}-\mathrm{C}$ bond is stronger than $\mathrm{Si}-\mathrm{Si}$ bond, hence former is more likely to extend than later.