Q. For the given complex [$CoCl_{2}(en)\left( NH_{3} \right)_{2}\rbrack$^{+} , the number of geometrical isomers, the number of optical isomers and total number of isomers of all type possible respectively are
A) 2, 2 and 4
B) 2, 2 and 3
C) 2, 0 and 2
D) 0, 2 and 2
Explanation
(b)
Geometrical isomers have same structural formula but differ in spatial arrangement of groups.
Different arrangement of atoms or groups in three dimensional space results in two optical isomers which are image of each other.
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Therefore, number of geometrical isomers, optical isomers and total number of isomers are 2, 2 and 3 respectively.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.