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Chemistry
Amongst the following alcohols which would react fastest with conc. HCl and ZnCl2 ?
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Q. Amongst the following alcohols which would react fastest with conc. $HCl$ and $ZnCl_2 ?$
JEE Main
JEE Main 2013
Alcohols Phenols and Ethers
A
pentanol
9%
B
2-methyl butanol
10%
C
2-pentanol
6%
D
2-methyl butan-2-ol
75%
Solution:
$ZnCl^{2+}$cone. $HCl$ is Lucas reagent. Lucas reagent reacts fastest with tertiary alcohol. $3^°$ alcohol + Lucas reagent = Immediate turbidity