Discussion Forum



1)

Consider the following reaction and statments

$[Co(NH_{3})_{4}Br_{2}]^{+}+Br^{-}\rightarrow [Co(NH_{3})_{3}Br_{3}]+NH_{3}$

I. Two isomers are produces 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


A) (I) and (II)

B) (I) and (III)

C) (III) and (IV)

D) (II) and (IV)

Answer:

Option B

Explanation:

If the reactant is cis isomer than following reaction takes place.

1482019919_isomer.JPG

i.e. two isomers are produced. If the reactant is trans  isomer than following reaction takes place.

1482019748_tran.JPG

i.e only 1 isomer is produced .Thus, statement  (I) and (III) are correct  resulting to option (b) as the correct answer.