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JEE CHEMISTRY MCQ: ALCOHOLS & PHENOLS & ETHERS
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Dehydration of alcohols to alkene by heating with conc. the initiation step is …….. followed with …. Mechanism.
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Correct option: C
Protonation of alcohol, carbocation
Option C is correct because the dehydration of alcohols in the presence of conc. H2SO4 proceeds via protonation of alcohol followed by carbocation formation.
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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