Q. Which one of the following has largest number of isomers? (R=alkyl group, en=ethylenediamine)
A) $\left\lbrack Ru\left( {NH}_{3} \right)_{4}{Cl}_{2} \right\rbrack^{+}$
B) $\left\lbrack Co\left( {NH}_{3} \right)_{5}Cl \right\rbrack^{2 +}$
C) $\left\lbrack Ir\left( {PR}_{3} \right)_{2}H(CO) \right\rbrack^{2 +}$
D) $\left\lbrack CO(en)_{2}{Cl}_{2} \right\rbrack^{+}$
Explanation
(d)
$\lbrack CO(en)_{2}{Cl}_{2}\rbrack$ forms optical and geometrical isomers.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.