Consider the following reaction and statements: Co NH 3 4 Br 2 + + Br - → Co NH 3 3 Br 3 + NH 3 (i)…

Consider the following reaction and statements:

CoNH34Br2++Br-→CoNH33Br3+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
  1. (ii) and (iv)
  2. (i) and (ii)
  3. (i) and (iii)
  4. (iii) and (iv)

Solution

From the below image it is clear that two isomers are produced if the reactant complexion is a cis-isomer, as well as only one isomer, is produced if the reactant complex is a trans-isomer.

Two isomers are produced if the reactant complex ion is a cis-isomer because the cis isomer can further form facial and meridional isomers.

Only one isomer is produced if the reactant complex ion is a trans-isomer because it cannot form any isomeric isomers.

Trans → only meridonial

Cis → fac and mer

Asked in: JEE Main 2018 (08 Apr)

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