Aldehydes and ketones

Aldehydes and ketones Quiz

Spec 15B · Edexcel International A Level Chemistry: Quiz

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5 questions, one answer each

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  1. 1. Which compound gives a silver mirror with Tollens' reagent?

    • A. Propanone
    • B. Propan-2-ol
    • C. Propanal
    • D. Propanoic acid

  2. 2. Which reagent converts butanone into butan-2-ol?

    • A. LiAlH₄ in dry ether
    • B. Acidified K₂Cr₂O₇
    • C. Tollens' reagent
    • D. I₂ and NaOH

  3. 3. Why are short-chain aldehydes soluble in water?

    • A. They form ionic bonds with water
    • B. They have hydrogen atoms on oxygen
    • C. Their C–H bonds are polar
    • D. They form hydrogen bonds with water through the oxygen lone pairs

  4. 4. Which compound gives a pale yellow precipitate with iodine and alkali?

    • A. Pentan-3-one
    • B. Butanone
    • C. Butanal
    • D. Propanal

  5. 5. What is the nucleophile in the reaction of propanone with HCN and KCN?

    • A. H⁺
    • B. HCN
    • C. CN⁻
    • D. K⁺

Quiz