Reagent used to convert $3 - e t h y l - 2 - p e n t e n e$ to $3 - c h l o r o - 3 - e t h y l p e n t a n e$ is:

H C l

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N a O H

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K M n O_{4}

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H_{2} S O_{4}

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Solution

The correct option is B $H C l$
3-ethyl-2-pentene is converted into 3-chloro-3-ethylpentane by reaction with $H C l .$ It is an electropilic addition of $H C l$ across carbon carbon double bond. The addition follows Markwonikoff's rule.
$C H_{3} - C H = C (C_{2} H_{5})_{2} + H C l \to C C l (C_{2} H_{5})_{3}$

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Reagent used to convert 3−ethyl−2−pentene to 3−chloro−3−ethylpentane is:

The correct option is B HCl3-ethyl-2-pentene is converted into 3-chloro-3-ethylpentane by reaction with HCl. It is an electropilic addition of HCl across carbon carbon double bond. The addition follows Markwonikoff's rule. CH3−CH=C(C2H5)2+HCl→CCl(C2H5)3

Reagent used to convert $3 - e t h y l - 2 - p e n t e n e$ to $3 - c h l o r o - 3 - e t h y l p e n t a n e$ is: