Aldehydes, Ketones and Carboxylic Acids
155 CBSE Class 12 Chemistry previous year questions (PYQs) from 5 papers, 2022 to 2026, with answers and worked solutions.
About this chapter
- Difficulty: 19 easy · 92 moderate · 44 hard.
- Most-asked subtopics: Chemical Reactions of Aldehydes and Ketones (100), Chemical Reactions of Carboxylic Acids (27), Preparation of Aldehydes and Ketones (18).
- Updated 13 September 2026.
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#1ModerateChemical Reactions of Aldehydes and Ketones
#2ModeratePreparation of Aldehydes and Ketones
#3ModerateChemical Reactions of Aldehydes and Ketones
#4ModerateChemical Reactions of Carboxylic Acids
#5ModerateChemical Reactions of Aldehydes and Ketones
#6ModerateChemical Reactions of Aldehydes and Ketones
#7ModerateChemical Reactions of Carboxylic Acids
#8ModerateHas imageChemical Reactions of Aldehydes and Ketones
#9HardChemical Reactions of Aldehydes and Ketones
#10ModerateChemical Reactions of Carboxylic Acids
#11ModerateChemical Reactions of Aldehydes and Ketones
#12ModeratePhysical Properties of Carboxylic Acids
#13ModerateChemical Reactions of Carboxylic Acids
For Questions number 13 to 16, two statements are given — one labelled as Assertion (A) and the other labelled as Reason (R). Select the correct answer to these questions from the codes (A), (B), (C) and (D) as given below.#14ModerateChemical Reactions of Aldehydes and Ketones
#15EasyMethods of Preparation of Carboxylic Acids
#16EasyChemical Reactions of Carboxylic Acids
#17ModerateNomenclature and Structure of Carbonyl Group
#18ModerateChemical Reactions of Carboxylic Acids
For Questions number 13 to 16, two statements are given — one labelled as Assertion (A) and the other labelled as Reason (R). Select the correct answer to these questions from the codes (A), (B), (C) and (D) as given below.#19ModerateChemical Reactions of Aldehydes and Ketones
#20EasyChemical Reactions of Carboxylic Acids
#21ModerateChemical Reactions of Aldehydes and Ketones
#22ModerateChemical Reactions of Aldehydes and Ketones
#23ModerateChemical Reactions of Aldehydes and Ketones
#24ModerateChemical Reactions of Aldehydes and Ketones
#25ModerateChemical Reactions of Aldehydes and Ketones
#26ModerateHas imageChemical Reactions of Aldehydes and Ketones
#27ModerateChemical Reactions of Aldehydes and Ketones
#28ModerateMethods of Preparation of Carboxylic Acids
#29ModerateChemical Reactions of Carboxylic Acids
#30ModerateChemical Reactions of Aldehydes and Ketones
#31ModerateChemical Reactions of Aldehydes and Ketones
#32ModerateChemical Reactions of Carboxylic Acids
#33ModerateChemical Reactions of Aldehydes and Ketones
#34ModerateChemical Reactions of Aldehydes and Ketones
#35ModerateHas imagePreparation of Aldehydes and Ketones
#36ModerateChemical Reactions of Aldehydes and Ketones
#37EasyChemical Reactions of Aldehydes and Ketones
#38ModerateChemical Reactions of Aldehydes and Ketones
For questions number 15 to 18, two statements are given – one labelled as Assertion (A) and the other labelled as Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below :#39ModerateChemical Reactions of Carboxylic Acids
For questions number 15 to 18, two statements are given – one labelled as Assertion (A) and the other labelled as Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below :#40HardChemical Reactions of Carboxylic Acids
#41ModeratePreparation of Aldehydes and Ketones
#42ModerateChemical Reactions of Carboxylic Acids
#43ModerateChemical Reactions of Aldehydes and Ketones
#44ModerateChemical Reactions of Aldehydes and Ketones
#45ModerateChemical Reactions of Aldehydes and Ketones
#46ModeratePreparation of Aldehydes and Ketones
#47ModerateChemical Reactions of Aldehydes and Ketones
#48EasyChemical Reactions of Aldehydes and Ketones
#49ModerateChemical Reactions of Aldehydes and Ketones
For Questions number 13 to 16, two statements are given — one labelled as Assertion (A) and the other labelled as Reason (R). Select the correct answer to these questions from the codes (A), (B), (C) and (D) as given below.#50ModerateChemical Reactions of Aldehydes and Ketones
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