The JEE Main Chemistry section requires speed and accuracy, along with a thorough understanding of the Amino Acids. This article provides a set of JEE Main PYQs on Amino Acids to help you understand the topic and improve your problem-solving skills with the help of detailed solutions by ensuring conceptual clarity, which will help you in the JEE Main 2026 preparation.
Whether you're revising the basics or testing your knowledge, these JEE Main PYQs will serve as a valuable practice resource.
The JEE Main 2026 exam is likely to continue on the same pattern as JEE Main 2025. Out of 90 questions, students can expect a fair mix from all three subjects. To get an edge, going through JEE Main previous year questions (PYQs) is one of the best strategies.
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JEE Main PYQs on Amino Acids
1.
A dipeptide, “x”, on complete hydrolysis gives “y” and “z”; “y” on treatment with aqueous HNO$_2$, produces lactic acid. On the other hand, “z” on heating gives the following cyclic molecule.
Based on the information given, the dipeptide X is:- valine-glycine
- alanine-glycine
- valine-leucine
- alanine-alanine
2.
Identify the correct statement among the following:- All naturally occurring amino acids except glycine contain one chiral centre.
- All naturally occurring amino acids are optically active.
- Glutamic acid is the only amino acid that contains a –COOH group at the side chain.
- Amino acid, cysteine easily undergoes dimerization due to the presence of free SH group.
3.
Which of the following compounds is least likely to give effervescence of CO$_2$ in presence of aq. NaHCO$_3$?
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