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

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.