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NEET2018ChemistrySome Basic Concepts of ChemistryActual

A compound, containing only carbon, hydrogen and oxygen has a molecular weight of 44 . On complete oxidation, it is converted into a compound of molecular weight is 60 . The original compound is

Options

  1. Aalcohol
  2. Bacid
  3. Caldehyde
  4. Dether

Correct answer

C. aldehyde

Step-by-step solution

On complete oxidation, the obtained compound shows increment in molecular weight of only 16. It means only one oxygen atom is added here. This condition is fulfilled by only aldehyde which on oxidation gives acid. RCHO [ O ] RCOOH Hence, original compound must be an aldehyde. The aldehyde with molecular weight 44 is acetaldehyde. array l Molecular weight =44 array CH ₃ CHO [ O ] array l Molecular weight =60 array CH ₃ COOH

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