AIIMS · Chemistry
Alcohols Phenols and Ethers
51 practice questions for AIIMS — 20 easy · 15 medium · 16 hard. Every question is graded instantly with a step-by-step solution when you miss it.
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MCQ
Assertion : tert-Butyl methyl ether reacts with $\mathrm{HBr}$ to form tert-butyl bromide and methanol. Reason : It follows $\mathrm{S}_{\mathrm{N}} 1$ mechanism.
MCQ
For the following reactions : which of the following is correct?
MCQ
Assertion : Ortho-nitrophenol is more acidic than meta-nitrophenol. Reason: Ortho-nitrophenol has more -I-effect than meta-nitrophenol.
MCQ
Assertion : Aromatic aldehydes and formaldehyde undergo Cannizzaro reaction. Reason: Aromatic aldehydes are almost as reactive as formaldehyde.
MCQ
Assertion : Phenol forms 2, 4, 6-tribromophenol on treatment with $\mathrm{Br}_2$ - water at $273 \mathrm{~K}$. Reason : Phenol is $o, p$ - directing group.
MCQ
Identify $X$.
MCQ
$\left(\mathrm{CH}_3\right)_3 \mathrm{COCH}_3$ and $\mathrm{CH}_3 \mathrm{OC}_2 \mathrm{H}_5$ are treated with hydroiodic acid. The fragments obtained after reactions are respectively
MCQ
Assertion: Phenol undergoes Kolbe's reaction whereas ethanol does not. Reason : Phenoxide ion is more basic than ethoxide ion.
MCQ
Salicylic acid can be easily prepared by reaction between
MCQ
Assertion: Dehydration of alcohols always takes place in basic medium. Reason : $\mathrm{OH}^{-}$is a better leaving group.
MCQ
Find the product for $$ \mathrm{CH}_3 \mathrm{CH}_2-\mathrm{O}-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{O}-\mathrm{CH}_2-\mathrm{C}_6 \mathrm{H}_5+\mathrm{HI} $$ (excess)
MCQ
Assertion : Ethers can be dried by using sodium wire. Reason : Ethers do not react with sodium.