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NEETChemistry

Alcohols, Phenols and Ethers

6 NEET Chemistry previous year questions on Alcohols, Phenols and Ethers — options free on every question; 1 include the answer & explanation free, the rest unlock with PYQ Pass.

Q1 FREE PREVIEW
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The difference in the reaction of phenol with bromine in chloroform and bromine in water medium is due to [JEE Main 2022, 26 Jul (Shift 1)]
aHyperconujugation in substrate
bPolarity of solvent
cFree radical formation
dElectromeric effect of the substrate
✓ Correct answer: b) Polarity of solvent
ExplanationThe difference in phenol’s reaction with bromine in chloroform vs. water is due to the polarity of the solvent.In water (polar), phenol ionizes to phenoxide, which is highly reactive and gives tribromo product.In chloroform (non-polar), less ionization occurs, giving monobromo product.Correct answer: Option B – Polarity of solvent.
Q2
PYQ

The products A and B obtained in the following reactions, respectively, are
\(3ROH+PC{l}_{3}\to 3RCl+A\\ ROH+PC{l}_{5}\to RCl+HCl+B\)

[NEET 2024]

a

\({H}_{3}P{O}_{3}\) and \(POC{l}_{3}\)

b

\(POC{l}_{3}\) and \({H}_{3}P{O}_{3}\)

c

\(POC{l}_{3}\) and \({H}_{3}P{O}_{4}\)

d

\({H}_{3}P{O}_{4}\) and \(POC{l}_{3}\)

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Q3
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Arrange the following compounds in the increasing order of polarity:

A. CH₃CH₂OCH₂CH₃
B. CH₃CH₂OH
C. CH₃COCH₃
D. CH₃COOH

Choose the correct answer from the options given below:

[Re-NEET 2026]

a

A < B < C < D

b

C < A < D < B

c

C < A < B < D

d

A < C < B < D

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Q4
PYQ

The products A and B obtained in the following reactions, respectively, are
\(3ROH+PC{l}_{3}\to 3RCl+A\\ ROH+PC{l}_{5}\to RCl+HCl+B\)

[NEET 2024]

a

\({H}_{3}P{O}_{3}\) and \(POC{l}_{3}\)

b

\(POC{l}_{3}\) and \({H}_{3}P{O}_{3}\)

c

\(POC{l}_{3}\) and \({H}_{3}P{O}_{4}\)

d

\({H}_{3}P{O}_{4}\) and \(POC{l}_{3}\)

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Q5
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\({\mathrm{CH}}_{3}{\mathrm{CH}}_{2}\mathrm{CH}={\mathrm{CH}}_{2}\overset{{\mathrm{B}}_{2}{\mathrm{H}}_{6}}{\underset{{\mathrm{H}}_{2}\mathrm{O},{\mathrm{H}}_{2}{\mathrm{O}}_{2},{\mathrm{OH}}^{-}}{\to }}\mathrm{Z}\)

What is \( \mathrm{Z} \) ?

[Re-NEET 2020]

a

\({\mathrm{CH}}_{3}{\mathrm{CH}}_{2}\mathrm{CH}\left(\mathrm{OH}\right){\mathrm{CH}}_{3}\)

b

\({\mathrm{CH}}_{3}{\mathrm{CH}}_{2}{\mathrm{CH}}_{2}\mathrm{CHO}\)

c

\( \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{3} \)

d

\( \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{OH} \)

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Q6
PYQ

Reaction between acetone and methyl magnesium chloride followed by hydrolysis will give:

a

\(\mathrm{iso}-\mathrm{propyl}\mathrm{alcohol}\)

b

\(\sec -\mathrm{butyl}\mathrm{alcohol}\)

c

\(\mathrm{tert}-\mathrm{butyl}\mathrm{alcohol}\)

d

\(\mathrm{iso}-\mathrm{butyl}\mathrm{alcohol}\)

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