Some Basic Principles Of Organic Chemistry Question 359
Question: Which of the following is most likely to show optical isomerism [UPSEAT 2004]
Options:
A) $ HC\equiv C-\underset{Cl,}{\overset{H,}{\mathop{\underset{|}{\overset{|}{\mathop{C}}},-}}},C\equiv CH $
B) $ HC\equiv C-\underset{Cl}{\overset{H}{\mathop{\underset{|}{\overset{|}{\mathop{C}}},}}},-CH_3 $
C) $ HC\equiv C-\underset{Cl}{\overset{H}{\mathop{\underset{|}{\overset{|}{\mathop{C}}},}}},-H $
D) $ HC\equiv C-\overset{Cl}{\mathop{\overset{|}{\mathop{C}},}},=CH_2 $
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Answer:
Correct Answer: B
Solution:
$ HC\equiv C-\underset{Cl\ }{\mathop{\overset{H}{\mathop{\underset{|}{\overset{|}{\mathop{C}}},}},-}},CH_3 $ shows optical isomerism because of molecule is unsymmetrical.
That is called chiral.
