which best describes the functional group in an aldehyde?\no a carbonyl group inserted into the main…

which best describes the functional group in an aldehyde?\no a carbonyl group inserted into the main chain\no an -oh group and a carbonyl group attached to the main chain\no a carbon chain with a carbonyl group bonded to one end\no a carboxylic acid bonded on each side to a carbon chain
Answer
Brief Explanations:
An aldehyde has a carbon - oxygen double bond (carbonyl group) where the carbon of the carbonyl is bonded to at least one hydrogen and is at the end of a carbon chain.
Answer:
a carbon chain with a carbonyl group bonded to one end