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Haloalkanes and Haloarenes — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryHaloalkanes and Haloarenes1 Mark
MCQ
$1-$Chlorobutane on reaction with alcoholic potash gives:
  • ✓
    $1-$butene
  • B
    $1-$butanol
  • C
    $2-$butene
  • D
    $2-$butanol
✓

Answer

Correct option: A.
$1-$butene
$\text{Alc. KOH}$ is a dehydrohalogenation agent, it reacts with an alkyl halide and alkene forms as a product.
Reaction of process:
$\text{CH}_3\text{CH}_2\text{CH}_2\text{Cl}\xrightarrow{\text{alc.KOH}}\text{CH}_3\text{CH}_2\text{CH}=\text{CH}_2$

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