• # question_answer The number of geometrical isomers in case of a compound with the structure $C{{H}_{3}}-CH=CH-CH=CH-{{C}_{2}}{{H}_{5}}$ is [NCERT 1980] A) 4 B) 3 C) 2 D) 5

$\overset{1\,\,\,\,\,\,\,}{\mathop{C{{H}_{3}}}}\,-\overset{2\,\,\,\,}{\mathop{CH}}\,=\overset{3\,\,\,\,}{\mathop{CH}}\,-\overset{4\,\,\,}{\mathop{CH}}\,=\overset{5\,\,\,\,}{\mathop{CH}}\,-\overset{6,7\,\,\,\,\,\,\,}{\mathop{{{C}_{2}}{{H}_{5}}}}\,$ 1.  2. 3.  4.