1.

A metal complex having the composition or (NH_(3))_(4)Cl_(2)Br has been isolated in two form A and B. The form A reacts with AgNO_(3) to give a white precipitate readily soluble in dilute aqueous ammonia whereas B gives a pale yellow precipitate soluble in concentrated ammonia . The hybridization of Cr in the complexes A and B respectively is

Answer»

`d^(2)SP^(3) and sp^(3)d^(2)`
`sp^(3)d^(2) and d^(2)sp^(3)`
`sp^(3)d and DSP^(3)`
`d^(2)sp^(3) and d^(2)sp^(3)`

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