1.

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 60. The original compound is

Answer»

an aldehyde
an acid
an alcohol
an ether

Solution :On complete oxidation the obtained compoundshows increament 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
`RCHOoverset([O])to RCOOH`
Hence, original compound MUST be
`underset(mol.wt.44)(CH_(3)CHO) OVERSET([O])tounderset(mol wt 60)(CH_(3)COOH)`


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