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JEE CHEMISTRY MCQ: ALCOHOLS & PHENOLS & ETHERS
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Medium
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Analyzing
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Assertion: Phenol undergo Kolbe reaction, ethanol does not.
Reason: Phenoxide ion is more basic than ethoxide ion.
Reason: Phenoxide ion is more basic than ethoxide ion.
View answer and explanation
Correct option: C
If Assertion is correct but Reason is incorrect.
Option C is correct. The assertion is correct as phenol undergoes Kolbe reaction while ethanol does not, but the reason is incorrect because phenoxide ion is less basic than ethoxide ion.
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Assertion (A): Isopropyl alcohol is preferred over ethanol.
Reason (R): Isopropyl alcohol is used as an antiseptic for skin before giving injections. Germinated Barley (an enzyme) is a source of enzyme: The process of converting alkyl halides into alcohols involves The b.p. of alcohols are….than corresponding thiols. Which of the following can not be used to oxidise primary alcohols to aldehydes Conc. heated with excess of at to form
Reason (R): Isopropyl alcohol is used as an antiseptic for skin before giving injections. Germinated Barley (an enzyme) is a source of enzyme: The process of converting alkyl halides into alcohols involves The b.p. of alcohols are….than corresponding thiols. Which of the following can not be used to oxidise primary alcohols to aldehydes Conc. heated with excess of at to form