Which of the following agents can be used for dehydration of alcohols to yield alkenes- nbsp-Conc- nbsp-H2SO4Conc- nbsp-H3PO4Hydrated nbsp-ZnCl2Anhydrous nbsp-ZnCl2

The correct options are A nbsp;Conc. nbsp;H2SO4 B Conc. nbsp;H3PO4 D Anhydrous nbsp;ZnCl2Dehydration of alcohols results in the formation of alkenes. ...

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Byju's Answer

Standard X

Chemistry

Dehydration of Alcohols

Which of the ...

Question

Which of the following agents can be used for dehydration of alcohols to yield alkenes?

Conc . H_{2} {SO}_{4}

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Conc . H_{3} {PO}_{4}

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Hydrated {ZnCl}_{2}

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Anhydrous {ZnCl}_{2}

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Solution

The correct options are
A $Conc . H_{2} {SO}_{4}$
B $Conc . H_{3} {PO}_{4}$
D $Anhydrous {ZnCl}_{2}$
Dehydration of alcohols results in the formation of alkenes. $Conc . H_{2} {SO}_{4}, conc . H_{3} {PO}_{4}$ and $anhydrous {ZnCl}_{2}$ are some of the strongest dehydrating agents. All of these can be used for dehydration of alcohols under specific conditions. e.g. for conversion of a tertiary alcohol into alkene, $20 % conc . H_{3} {PO}_{4}$ can be used at 360K.

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