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Chemistry Question 69 – JEE-MAIN 2026

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Match the LIST-I with LIST-II List-IList-IIName of amino acidOne letter symbol/typeA. ArginineI. D/Non-essentialB. Aspartic acidII. R/EssentialC. LysineIII. E/Non-essentialD. Glutamic acidIV. K/Essential Choose the correct answer from the options below:

Recall the one-letter symbols for common amino acids and their classification as essential or non-essential.

Step 1: Identify One-Letter Symbols and Essentiality for List-I Amino Acids✦ Active

We need to match each amino acid in List-I with its correct one-letter symbol and essentiality status from List-II.

A. Arginine→ R (Conditionally Essential/Essential in this context)B. Aspartic acid→ D (Non-essential)C. Lysine→ K (Essential)D. Glutamic acid→ E (Non-essential)
Step 2: Match List-I to List-II based on Symbols and Essentiality○ Expand

Now, let's find the corresponding entries in List-II for each amino acid from List-I:

A. Arginine (R, Essential)→ II. R/EssentialB. Aspartic acid (D, Non-essential)→ I. D/Non-essentialC. Lysine (K, Essential)→ IV. K/EssentialD. Glutamic acid (E, Non-essential)→ III. E/Non-essential
💡 Teacher's Secret Hint

Remember that Arginine is often considered conditionally essential, but in the context of the given options, 'Essential' is the intended classification.

Step 3: Formulate the Final Matching Option○ Expand

Combining the matches, we get the sequence: A-II, B-I, C-IV, D-III. This corresponds to option 1.

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