STANDARDChemistry-Alcohols, Phenols and Ethers
STANDARD Chemistry Acidity of Alcohols MCQ Question
Type: MCQ-conceptual-Medium-Class 12
The correct sequence of decreasing acidity is
A
(CH₃)₃COH > (CH₃)₂CHOH > C₂H₅OH > CH₃OH
B
CH₃OH > C₂H₅OH > (CH₃)₂CHOH > (CH₃)₃COH
C
C₂H₅OH > CH₃OH > (CH₃)₃COH > (CH₃)₂CHOH
D
(CH₃)₂CHOH > (CH₃)₃COH > C₂H₅OH > CH₃OH
Correct Answer
Option B
Detailed Explanation
Acidity decreases with increasing alkyl group size due to the electron-donating effect, which destabilizes the alkoxide ion. Methanol is the most acidic, followed by ethanol, isopropanol, and tert-butanol.
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