Question

The functional group in Aldehyde is:

• A. \( -\text{OH} \)
• B.

  

• C.

  

• D.

  

Hint:

Aldehydes are characterized by the functional group \( \text{-CHO} \), where the carbonyl group (\( \text{C=O} \)) is attached to a hydrogen atom.

Answer 1

The Correct Option is B

The functional group of aldehydes is \( -\text{C} = \text{O} \), which represents a carbonyl group (\( \text{C=O} \)) with the carbonyl carbon bonded to a hydrogen atom (\( \text{H} \)).
- Option (A) \( -\text{OH} \) is the functional group of alcohols.
- Option (C) \( -\text{C=O} \) is the carbonyl group, but in aldehydes, it is always attached to a hydrogen atom as in option (B).
- Option (D) \( -\text{C-OH} \) is the functional group of carboxylic acids.
Thus, the correct functional group in aldehyde is \( -\text{C=O} \).