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A dipeptide, “x” on complete hydrolysis gives “y” and “z”. “y” on treatment with aq. 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

1. alanine - alanine
2. alanine - glycine
3. valine - leucine
4. v aline - glycine CAREER POINT CAREER POINT Ltd., CP Tower, IPIA, Road No.1, Kota (Raj.), Ph: 0 81 - 47250011 www.careerpoint.ac.in 19 JEE Main Online Paper

Correct answer: alanine - glycine

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