Question

The compound(s) with TWO lone pairs of electrons on the central atom is(are)
BrF5; ClF3; XeF4; SF4

Answer 1

Answer:

XeF4; SF4

Explanation:

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Answer 2

Question:

The compound(s) with TWO lone pairs of electrons on the central atom is(are)

BrF5; ClF3; XeF4; SF4    [JEE Advanced 2016]

Solution:

a) BrF5 :  One lone pair on central atom Br.  (Square pyramidal)

b) ClF3 : Two lone pair on cental atom Cl. (T - shaped)

c) XeF4 :  Two lone pair on central atom Xe. (Square planar)

d) SF4 : One lone pair on central atom S.   (See-saw shaped)

Hence, option b and option c are correct.

i.e Only, ClF3 & XeF4 contains two lone pair of electrons on central atom.

Note: Lone pairs are shown in the figures attached.