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A compound with the molecular formula \(\mathrm{C_5H_{12}O}\) cannot be

Question and options

A compound with the molecular formula C5H12O\mathrm{C_5H_{12}O} cannot be
  1. a primary alcohol
  2. an ether
  3. a secondary alcohol
  4. a ketone

Answer and explanation

Correct answer: D - a ketone
C5H12O\mathrm{C_5H_{12}O} fits CnH2n+2O\mathrm{C_{n}H_{2n+2}O} with no unsaturation: only alcohols and ethers are possible. A C5\mathrm{C_5} ketone would be C5H10O\mathrm{C_5H_{10}O}.

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