Step 1: Understanding the aldehyde group:
The aldehyde group is represented by −CHO. It consists of a carbonyl group (C=O) attached to a hydrogen atom. The general formula for an aldehyde is R−CHO, where R is a hydrocarbon group.
- Aldehydes are characterized by the presence of the carbonyl group at the end of the carbon chain.
Step 2: Understanding the carbonyl group:
The carbonyl group is represented by −C=O, where a carbon atom is double-bonded to an oxygen atom.
- The carbonyl group is found in both aldehydes and ketones. However, its position distinguishes these two types of compounds:
- In aldehydes, the carbonyl group is attached to a hydrogen atom, forming the −CHO structure.
- In ketones, the carbonyl group is bonded to two carbon atoms, resulting in the structure −C(C)(C)=O.
Step 3: Conclusion:
(i) The aldehyde group is represented by −CHO, where the carbonyl group is attached to a hydrogen atom.
(ii) The carbonyl group −C=O is a functional group found in both aldehydes and ketones, but the difference lies in their bonding to other atoms.