Question

: $SeCl_4$ does not have a tetrahedral structure. :$Se$ in $SeCl_4$ has two lone pairs.

• A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
• B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
• C. Assertion is true but Reason is false
• D. Both Assertion and Reason are false.

Answer 1

Answer: (C)

Assertion is true but Reason is false

Answer 2

$SeCl _{4}$ has see-saw geometry i.e., distorted trigonal pyramidal geometry (VSEPR theory). In this Se molecule has only one lone pair and hence it undergoes $s p^{3} d$ hybridisation.