1.

Arrange the following species in the increasing order of long pairs of electrons.(A) CO ""(B) NO_(2)^(-) (C ) NF_(3)"" (D) CO_(3)^(-2)

Answer»

`A lt B lt C lt D`
`B lt C lt A lt D `
`C lt A lt D lt B`
`A lt B lt D lt C `

Solution :The Lewies STRUCTURES of the given molecules are shown below:
HENCE, the CORRECT order is A `lt B lt D lt C.`
THUS, option (d) is correct.


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