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8.1. Organic chemistry Nomenclature of organic compounds — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry8.1. Organic chemistry Nomenclature of organic compounds1 Mark
MCQ
The $IUPAC$ nomenculature of $(CH_3)_3C-CH=C(CH_3)_2$ is
  • A
    $2,4,4-$ Trimethylpent $-3-$ ene
  • ✓
    $2,4,4-$ Trimethylpent $-2-$ ene
  • C
    $2,2,4-$ Trimethylpent $-3-$ ene
  • D
    $2,2,4-$ Trimethylpent $-2-$ ene
✓

Answer

Correct option: B.
$2,4,4-$ Trimethylpent $-2-$ ene
b
$\begin{array}{*{20}{c}}
  {\,\,\,\,\,\,\,\,C{H_3}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_3}\,} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|} \\ 
  {\mathop C\limits_5 {H_3} - \mathop C\limits_4  - \mathop C\limits_3 H = \mathop C\limits_2  - \mathop C\limits_1 {H_3}} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_{3\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}}} 
\end{array}$

$2,4,4-Trimethylpent-2-ene$

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