Alkyl Halides - Result Question 35

####35. n-propyl bromide on treatment with ethanolic potassium hydroxide produces

(1987, 1M)

(a) propane

(b) propene

(c) propyne

(d) propanol

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Answer:

Correct Answer: 35. (b)

Solution:

  1. An alkyl halide containing at least one $\beta-H$, on treatment with ethanolic $KOH$, undergoes dehydrohalogenation, giving alkene.

$CH _3-CH _2-CH _2-Br+KOH \xrightarrow{\text { Ethanol }} CH _3-CH=CH _2$



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