Home/
Competitive Exams/
JEE Main & Advanced/
Chemistry/
Aldehydes, Ketones and Carboxylic Acids/
Question 790001
JEE Chemistry · Easy

Aldehydes, Ketones and Carboxylic Acids: Carbonyl group MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

Timer-based practiceDetailed answer reviewMobile-friendly flow
Carbonyl groupEasyQuestion 790001

Question

The functional group in aldehydes is:
  1. A
    −CHO (attached to C or H)
    Correct
  2. B
    −CO− (ketone)
  3. C
    −COOH (acid)
  4. D
    −COCl (acid chloride)

Correct answer

−CHO (attached to C or H)

Explanation

Aldehydes contain the −CHO group where the carbonyl carbon is bonded to at least one H. Ketones have the carbonyl carbon bonded to two carbon atoms (−CO−).

Review Aldehydes, Ketones and Carboxylic Acids notesStart timed chapter practice