An is a hydrocarbon in which one or more hydrogen atoms is replaced by a -coh group. a. aldehyde b. alcohol c. ester d. amino acid

Answer :  The correct option is, (A) Aldehyde

Explanation :

Alcohol group : It is the class of organic compound in which the hydroxy (-OH) group is attached to a hydrocarbon is known as alcohols.

The general representation of alcohol are, .

For example : is obtained when one hydrogen atom is replaced by group.

Amino acid : Amino acid are the acid that contains two functional groups which are carboxylic group, and ammine group, .

The bond present between the two amino acid is a peptide bond. The peptide bond is formed between the nitrogen of one amino acid and carbon of another amino acid.

Ester group : It is the class of organic compound in which the group is attached to a hydrocarbon is known as ester.

The general formula of ester are, . It is directly attached to the two alkyl group of carbon.

Aldehyde group : It is the class of organic compound in which the (-CHO) group is attached to a hydrocarbon is known as aldehyde.

The general representation of aldehyde are, .

For example : is obtained when one hydrogen atom is replaced by group.

Hence, the correct option is, (A) Aldehyde

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