A) \[{{C}_{2}}{{H}_{5}}Br\]
B) \[(C{{H}_{2}})\,{{(COOH)}_{2}}\]
C) \[(C{{H}_{2}})\,{{(COOH)}_{2}}\]
D) \[{{C}_{2}}{{H}_{6}}\]
Correct Answer: C
Solution :
Key Idea: The compounds must fulfill two conditions to show geometrical isomemm. (i) The compound should have at least one \[C=C\]. (ii) The two groups attached to same carbon atom must be different, Out of given choices only [c] fulfills both conditions and shows geometrical isomerism. \[\underset{\begin{smallmatrix} (c) \\ 2-butenel,4--dioicadd \end{smallmatrix}}{\mathop{H-\underset{\begin{smallmatrix} || \\ H-C-COOH \end{smallmatrix}}{\mathop{C}}\,-COOH}}\,\]
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