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Preparation of Haloalkane from Alkene

Acid catalsed...

Question

Acid catalsed hydration of which of the alkene takes placed at a fastest rate?

C H_{2} = C H_{2}

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C H_{3} - C h = C H_{2}

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C H_{3} - C H_{3} | C = C H_{2}

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cannot be prdicated

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Solution

The correct option is A $C H_{2} = C H_{2}$
Alkene which is unstable will undergo faster acid catalysed reaction.That is alkene which contain less number or no alpha hydrogen.

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S_{N} 2

K I

C H_{3} - C H_{2} - C H_{2} - C H_{2} - C l a n d C H_{3} - C H ∣ C H_{3} - C H_{2} - C l

(I) (I I)

C H_{3} - C H_{2} - C H_{2} - C l a n d C H_{3} - C H_{2} - C H_{2} - B r

(I) (I I)

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C H_{3} - C H_{2} - C H_{2} - B r ∣ C H - C H_{3} a n d C H_{3} - C H_{3} ∣ C H - C H_{2} - B r ∣ C H - C H_{3}

(I) (I I)

C H_{3} - C H_{2} - C H_{2} - C H_{2} - C H | C H_{3} - C | C H_{3} - C H_{3} - C H_{2} - C H_{3} | C H - C H_{2} - C H_{2} - C H_{2} - C H_{3}

C H_{3} - C H_{3}, C H_{2} = C H_{2}

C H \equiv C H

A g N O_{3}

$C H_{3} - C | C H_{2} - C H_{3} = C H - C H_{2} - C H_{2} - C H_{3}$

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