Alcohols Phenols And Ethers Question 13
Question: During dehydration of alcohols to alkenes by heating with conc. $ H_2SO_4 $ the initiation step is
[AIEEE 2003]
Options:
A) Protonation of an alcohol molecule
B) Formation of carbocation
C) Excretion of water
D) Formation of an ester
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Answer:
Correct Answer: A
Solution:
$ H_2SO_4\to {H^{+}}+HSO_4^{-} $
$ C_2H_5OH+{H^{+}}\underset{ofalcohol}{\mathop{\xrightarrow{Protonation}}}\underset{\text{Protonated alcohol}}{\mathop{C_2H_5-\underset{H}{\mathop{\underset{\downarrow }{\overset{\oplus }{\mathop{O}}}}}-H}} $
BETA
