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6. Haloalkanes and Haloarenes — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistry6. Haloalkanes and Haloarenes1 Mark
MCQ
An alkyl halide may be converted into an alcohol by
  • A
    Addition
  • ✓
    Substitution
  • C
    Dehydrohalogenation
  • D
    Elimination
✓

Answer

Correct option: B.
Substitution
b
$(b)$ $\underset{Alkyhalide}{\mathop{R-\,C{{H}_{2}}-C{{H}_{2}}-X}}\,\xrightarrow[reaction]{Addition}$ Not shown by alkyl halide (saturated compound)

$\underset{Alkyhalide}{\mathop{R-\,C{{H}_{2}}-C{{H}_{2}}-X}}\,\xrightarrow[Alc.KOH]{Dehydroha\log enation}$ $\underset{Alkene}{\mathop{R-\,CH=C{{H}_{2}}+HX}}$

$\underset{Alkyhalide}{\mathop{R-\,C{{H}_{2}}-C{{H}_{2}}-X}}\,\xrightarrow[Alc.KOH]{E\lim ination}$ $\underset{Alkene}{\mathop{R-\,CH=C{{H}_{2}}+HX}}$

$\underset{Alkyhalide}{\mathop{R-\,C{{H}_{2}}-C{{H}_{2}}-X}}\,\xrightarrow[substitution]{Aq.\,KOH}$  $\underset{Alcohol}{\mathop{R-\,C{{H}_{2}}-C{{H}_{2}}-OH+HX}}\,$

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