K2Cr2O7/H2SO4 generate____________________?
Correct answer: C. Nascent oxygen[O]
- A. Oxygen
- B. Hydrogen
- C. Nascent oxygen[O]
- D. Nascent hydrogen[H]
Explanation
In acidic solution, dichromate acts as an oxidising agent and is often represented in school chemistry as generating nascent oxygen, [O], which oxidises alcohols. Molecular oxygen gas is not the intended product of this reagent system, so choosing oxygen confuses an oxidising equivalent with free O2 gas.
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About Alcohols
Alcohols contain a hydroxyl group attached to a saturated carbon atom and are classified as primary, secondary or tertiary. Their nomenclature, hydrogen bonding, acidity, oxidation, dehydration, reaction with sodium and conversion to haloalkanes are covered, along with the distinction between alcohols and phenols, where the hydroxyl group is attached directly to an aromatic ring.
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535 free Alcohols and Phenols MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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