12 JEE Main 2020 Aldehydes and Ketones previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2020 previous-year questions from the Aldehydes and Ketones chapter of Chemistry. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Aldehydes and Ketones chapter hub.
In the following reaction A is
Consider the following reactions A i C H 3 M B r ( i i ) H 3 O + B C u 573 K 2 - m e t h y l - 2 - b u t e n e . The ma…
The major aromatic product C in the following reaction sequence will be :
The correct order of the calculated spin-only magnetic moments of complexes A to D is: A N i C O 4 B N i H 2 O 6 C l 2…
The compound A in the following reactions is: A   → ( ii )   Conc .   H 2 SO 4 / ∆ ( i ) …
The increasing order of the reactivity of the following compounds in nucleophile addition reaction is: Propanal, Benzal…
The major product [ C ] of the following reaction sequence will be :
The major product [ R ] in the following sequence of reaction is :
The correct match between Item-I (starting material) and Item-II (reagent) for the preparation of benzaldehyde is : Ite…
Two compounds A and B with same molecular formula C 3 H 6 O undergo Grignard reaction with methylmagnesium bromide to g…
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