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Alcohol, phenol & ether MCQs for NEET — Chemistry Questions with Answers

Practice free Alcohol, phenol & ether (Chemistry) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.

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The alcohol that forms fats with fatty acids is:

glycerol

ethanol

methanol

glycol

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Explanation

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The explosive nitroglycerine is:

a soap

a salt

an ester

a complex compound

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Explanation

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When an ether is treated with P₂S₅ we get:

thio-alcohol

thio-ester

thio-ether

thio-aldehyde

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Explanation

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1-propanol and 2-propanol can be best distinguished by:-

oxidation with alkaline KMnO₄ followed by reaction with Fehling's solution

oxidation with acidic dichromate followed by reaction with Fehling’s solution

oxidation by heating with copper followed by reaction with Fehling’s solution

oxidation with conc. H₂SO₄ followed by reaction with Fehling’s solution

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Explanation

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Phenyl magnesium bromide reacts with methanol to give a mixture of:-

anisole and Mg(OH)Br

benzene and Mg(OMe)Br

toluene and Mg(OH)Br

phenol and Mg(Me)Br

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Explanation

(b) C₆H₅MgBr + HOCH₃→ C₆H₆+ Mg(Br)OCH₃

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When wine is put in air it become sour due to:-

oxidation of C₂H₅OH into CH₃COOH

bacteria

virus

formic acid formation

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Explanation

(a) C₂H₅OH→CH₃COOH
Acetobacilie (an enzyme)

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The enzyme which can catalyse the conversion of glucose to ethanol is:

zymase

diastase

maltase

invertase

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Explanation

(a) C₁₂H₂₂O₁₁ $\overset{Maltase}{\to}$ C₆H₁₂O₆ $\overset{Zymase}{\to}$ C₂H₅OH

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Denatured spirit is mainly used as a:

good fuel

drug

solvent in preparing varnishes

material in the preparation of oil

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Explanation

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The reaction of ethanol with H₂SO₄does not give:

C₂H₄

C₂H₅OC₂H₅

C₂H₂

C₂H₅HSO₄

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Which reagent will convert propionic acid to propanol-1?

KMnO₄

LiAlH₄

Cr₂O₃

MnO₂

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Explanation

(b) CH₃CH₂COOH $\to_{[H]}^{{LiAlH}_{4}}$ CH₃CH₂CH₂OH

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