HARDMCQ SINGLEJEE Advanced ChemistryOrganic ChemistryBiomoleculesAchiever Section
Assertion: Alpha -amino acids exist as internal salt in solution as they have amino and carboxylic acid groups in near vicinity. Reason: H ion given by carboxylic group (– COOH) is captured by amino group (–NH₂) having lone pair of electrons.
A.A✓ Correct
B.B
C.C
D.D
Explanation
2 2 NH CH COOH is a typical amino acid. In solution it exists as, internal or Z witter ion, 3 2 NH CH COO Because the proton H of COOH group is captured by 2 NH group as 2 NH has a lone pair of electrons on N atom.
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