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Question

Dehydration of an alcohol leads to the formation of an _____ .

A
alkene
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B
alkane
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C
alkyne
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D
alkyl halide
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Solution

The correct option is A alkene
Dehydration of an alcohol leads to the formation of an alkene. A molecule of water is lost and C=C double bond is formed.

CH3−CH2−OH Ethanol 95% H2SO4−−−−−−−→443KH2C=CH2 Ethylene +H2O

Hence the correct option is A.

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