MCQ
Given below are two statements:

Statement $I$: $\mathrm{PF}_5$ and $\mathrm{BrF}_5$ both exhibit $\mathrm{sp}^3 \mathrm{~d}$ hybridisation.

Statement $II$: Both $\mathrm{SF}_6$ and $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$ exhibit $\mathrm{sp}^3 \mathrm{~d}^2$ hybridisation.

In the light of the above statements, choose the correct answer from the options given below:

  • A
    Statement $I$ is true but Statement $II$ is false
  • B
    Both Statement $I$ and Statement $II$ are true
  • Both Statement $I$ and Statement $II$ are false
  • D
    Statement $I$ is false but Statement $II$ is true

Answer

Correct option: C.
Both Statement $I$ and Statement $II$ are false
c
$\text { Hybridisation } \ \ \ \text { Hybridisation }$

$\mathrm{PF}_5 \ \ \mathrm{sp}^3 \mathrm{~d} \ \ \ \ mathrm{SF}_6 \ \  \mathrm{sp}^3 \mathrm{~d}^2$

$\mathrm{BrF}_5 \ \  \mathrm{sp}^3 \mathrm{~d}^2 \ \  {\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{+3}} \ \  \mathrm{~d}^2 \mathrm{sp}^3$

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