JEE Main | 2018Coordination CompoundHard

Question

Consider the following reaction and statements :
[Co(NH3)4Br2]+ + Br- → [Co(NH3)3Br3] + NH3
(I) Two isomers are produced if the reactant complex ion is a cis-isomer.
(II) Two isomers are produced if the reactant complex ion is a trans-isomer.
(III) Only one isomer is produced if the reactant complex ion is a trans-isomer.
(IV) Only one isomer is produced if the reactant complex ion is a cis-isomer.
The correct statements are :

Options

A.

(I) and (III)

B.

(III) and (IV)

C.

(II) and (IV)

D.

(I) and (II)

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