Q45.Identify A in the given chemical reaction. JEE Main 2021 (26 Feb Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)
What This Question Tests
This question assesses knowledge of common qualitative tests for functional group identification, specifically the 2,4-DNP test for aldehydes and ketones.
Concepts Tested
📚 NCERT Sections This Tests
8.17 — Complete Each Synthesis By Giving Missing Starting Material, Reagent Or Products
Chemistry Class 12 · Chapter 8
8.17 Complete each synthesis by giving missing starting material, reagent or products
8.5 — Draw Structures Of The Following Derivatives.
Chemistry Class 12 · Chapter 8
8.5 Draw structures of the following derivatives. (i) The 2,4-dinitrophenylhydrazone of benzaldehyde (ii) Cyclopropanone oxime (iii) Acetaldehydedimethylacetal (iv) The semicarbazone of cyclobutanone (v) The ethylene ketal of hexan-3-one (vi) The methyl hemiacetal of formaldehyde 255 Aldehydes, Ketones and Carboxylic Acids Reprint 2025-26
8.1 — What Is Meant By The Following Terms ? Give An Example Of The Reaction In
Chemistry Class 12 · Chapter 8
8.1 What is meant by the following terms ? Give an example of the reaction in each case. (i) Cyanohydrin (ii) Acetal (iii) Semicarbazone (iv) Aldol (v) Hemiacetal (vi) Oxime (vii) Ketal (vii) Imine (ix) 2,4-DNP-derivative (x) Schiff’s base
📋 Question Details
- Chapter
- Aldehydes Ketones Carboxylic Acids
- Topic
- Identification of carbonyl compounds
- Year
- 2021
- Shift
- 26 Feb Shift 2
- Q Number
- Q45
- Type
- MCQ
- NCERT Ref
- Class 12 Chemistry Ch 12: Aldehydes Ketones and Carboxylic Acids
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