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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 $IUPAC$ name of the compound having structure ${C_2}{H_5} - \mathop {\mathop {C - }\limits_{||\,\,\,\,} }\limits_{C{H_2}} \mathop {\mathop {CH - }\limits_{|\,\,\,\,\,\,\,\,\,} }\limits_{C{H_3}\,\,} C{H_3}$ is
  • A
    $3-$ methyl $-2-$ ethyl butene $-1 $
  • ✓
    $2-$ ethyl $-3-$ methyl butene $-1 $
  • C
    $3-$ ethyl $-3-$ methyl butene $-1 $
  • D
    Ethyl isopropyl ethene
✓

Answer

Correct option: B.
$2-$ ethyl $-3-$ methyl butene $-1 $
b
Hence, IUPAC name is $2$-ethyl-$3$-methylbut-$1$-ene.

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