COMEDK20269 May 2026Evening ShiftChemistryBiomoleculesActual
Identify the correct statement.
Options
- AExcept Glycine and Tryptophan all the other naturally occurring Amino acids are optically active
- BGlucose gets oxidised to Gluconic acid with B r₂ (aq) which indicates that the carbonyl group in it is an Alde
- CThe "D" in D(+) –glucose represents the dextrorotatory nature of Glucose and (+) stands for its configuration
- DDuring denaturation of Proteins its 3- dimensional structure is destroyed because the primary, secondary and t
Correct answer
B. Glucose gets oxidised to Gluconic acid with B r₂ (aq) which indicates that the carbonyl group in it is an Alde
Step-by-step solution
Glycine is the only naturally occurring amino acid that is optically inactive because its -carbon is attached to two hydrogen atoms. Tryptophan is optically active. Thus, the first statement is incorrect. Bromine water is a mild oxidising agent that specifically oxidises aldehydes to carboxylic acids. The oxidation of glucose to gluconic acid by bromine water confirms the presence of an aldehydic group. Thus, the second statement is correct. In D(+)-glucose, 'D' represents the relative configuration with respect to