Q. Which of the following shows geometrical isomerism?
A) $C_{2}H_{5}Br$
B) $\left( CH_{2} \right)(COOH)_{2}$
C) $(CH)_{2}(COOH)_{2}$
D) $C_{2}H_{6}$
Explanation
(c)
The compounds must fulfill two conditions to show geometrical isomerism.
(i) The compound should have at least one C=C.
(ii) The two groups attached to same carbon must be different.
Out of given choices only (c) fulfill both conditions and shows geometrical isomerism.
$H - C - COOH$
$\ \ \ \ \ \ \ \ \parallel$
$H - C - COOH$
(c)
2-butene-1,4-dioic acid
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.