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STD 11 - 8.2 Organic chemistry isomerism — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 11 - 8.2 Organic chemistry isomerism4 Marks
MCQ
Which of the following may exist in enantiomorphs
  • A
    $C{H_3} - \mathop {\mathop {CH - COOH\,}\limits^{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} }\limits^{C{H_3}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} $
  • B
    $C{H_2} = CHC{H_2}C{H_2}C{H_3}$
  • C
    $C{H_3} - \mathop {\mathop {CH - C{H_3}\,}\limits^{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} }\limits^{N{H_2}\,\,\,\,\,\,\,\,\,\,\,\,} $
  • ✓
    $C{H_3} - C{H_2} - \mathop {\mathop {CH - C{H_3}}\limits^{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} }\limits^{N{H_2}\,\,\,\,\,\,\,\,\,\,\,\,} $
✓

Answer

Correct option: D.
$C{H_3} - C{H_2} - \mathop {\mathop {CH - C{H_3}}\limits^{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} }\limits^{N{H_2}\,\,\,\,\,\,\,\,\,\,\,\,} $
d
(d) $C{H_3} - C{H_2} - \mathop {\mathop {{C^*}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu}  - {\mkern 1mu} }\limits_{|{\kern 1pt} \,\,\,\,\,\,\,\,{\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} }^{|\,\,\,\,\,\,{\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} } }\limits_{H\,\,\,\,\,\,\,\,{\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} }^{N{H_{2\,\,\,\,\,\,\,}}} C{H_3}$

Chiral centre is present. Hence, it exists as optical isomers or enantiomorphs.

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