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Q.

The molecule/ion in which the central atom violates the octet rule is

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a

H2S

b

CO32−

c

SF4

d

N3−

answer is A.

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Detailed Solution

Violates the octet rule

SF4  S: ns2 np4

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Here ‘S’ does not contain 5 bonds. One of the equatorial positions is occupied by lone pair of electrons.  So it cannot obey octet rule.

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