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प्रश्न
Reaction of \[\ce{C6H5CH2Br}\] with aqueous sodium hydroxide follows ______.
पर्याय
SN1 mechanism
SN2 mechanism
Any of the above two depending upon the temperature of reaction
Saytzeff rule
उत्तर
Reaction of \[\ce{C6H5CH2Br}\] with aqueous sodium hydroxide follows SN1 mechanism.
Explanation:
Greater the stability of carbonation, greater will be its ease of formation from alkyl halide and faster will be the rate of reaction. In case of alkyl halides, 3° carbocations.
For the same reasons, allylic and benzylic halides show high reactivity towards the SN1 reaction. The carbonation thus formed gets stabilized through resonance as shown below:
So, as the given compound, \[\ce{C6HCH2Cl}\] is a benzylic halide, it would undergo SN1 reaction.
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(a) \[\begin{array}{cc}
\ce{CH3}\phantom{.................}\\
\backslash\phantom{.............}\\
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/\phantom{.............}\\
\ce{CH3}\phantom{.................}
\end{array}\]
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(c) \[\begin{array}{cc}
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\phantom{}|\\
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\phantom{}|\\
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\end{array}\]
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