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JEE CHEMISTRY MCQ: ALCOHOLS & PHENOLS & ETHERS
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Understanding
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Assertion: When alkyl aryl ethers react with excess of hydrogen halides, phenol and alkyl halide are produced.
Reason: Alkyl aryl ethers are cleaved at the alkyl-oxygen bond due to more stable aryl-oxygen bond.
Reason: Alkyl aryl ethers are cleaved at the alkyl-oxygen bond due to more stable aryl-oxygen bond.
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Correct option: A
If both Assertion and Reason are true and Reason is the correct explanation of Assertion
The correct answer is A (If both Assertion and Reason are true and Reason is the correct explanation of Assertion) because alkyl aryl ethers undergo cleavage at the alkyl-oxygen bond due to the greater stability of the aryl-oxygen bond.
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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