Question : What is the chemical formula for the aldehyde group?
Option 1: –COOH
Option 2: –OH
Option 3: –CH2O
Option 4: –CHO
Correct Answer: –CHO
Solution : The correct answer is - CHO .
The chemical formula of an aldehyde group is -CHO. The general formula for an aldehyde is RCHO. It is a functional group that contains one carbonyl group, one hydrogen and one R group attached to a carbonyl carbon atom. The general formula for an aldehyde is C n H 2n+2 .CHO. The chemical formula of Ketone is -CO-. The chemical formula of Carboxylic acid is -COOH.
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