Correct: Ethanal, Propanone, Butanone, Pentan-2-one, 3-methyl butanone, Hexan-2-one, Butan-2-ol, Pentan-2-ol, Incorrect: Pentan-3-one, Pentanal, 2-methyl butanal, 3-methyl butanal, Hexan-3-one, hexanal, 4-methyl pentanal, Pentan-3-ol,

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