Question

Assertion: SeCl₄ does not have a tetrahedral structure.

Reason: Se in SeCl₄ has two lone pairs.

(a) Both A and R are true and R is the correct explanation of A

(b) Both A and R are true but R is not correct explanation of A

(c) A is true but R is false

(d) A and R are false

Answer 1

Correct option  (c) A is true but R is false

Explanation:

SeCl₄ possesses see-saw geometry, which can be regarded as a distorted trigonal bipyamidal structure, having one lone pair of electrons in the basal position of the trigonal bipyramid. See-saw geometry of SeCl₄ molecules arises due to the sp³d hybridisation of the central atom. The distortion in shape is due to the presence of one lone pair of electrons.