Question

Given below are two statements: Statement I: $\text{PF}_5$ and $\text{BrF}_5$ both exhibit $\text{sp}^3\text{d}$ hybridisation.Statement II: Both $\text{SF}_6$ and $[\text{Co}(\text{NH}_3)_6]^{3+}$ exhibit $\text{sp}^3\text{d}^2$ 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
• C. Both Statement I and Statement II are false
• D. Statement I is false but Statement II is true

Answer 1

Answer: (C)

Both Statement I and Statement II are false

Answer 2

The hybridisation of the given molecules is as follows:

$Molecule$	$Hybridisation$
$\text{PF}_5$	$sp^3d$
$\text{BrF}_5$	$sp^3d^2$
$\text{SF}_6$	$sp^3d^2$
$[\text{Co(NH}_3\text{)}_6]^{3+}$	$d^2sp^3$

Thus, both Statement I and Statement II are false.