Glucose reacts with bromine water to produce:

The correct answer is Option (2) → Gluconic acid

NCERT (2026-27 edition):
10.1.2.1 Glucose – “4. Glucose gets oxidised to six carbon carboxylic acid (gluconic acid) on reaction with a mild oxidising agent like bromine water. This indicates that the carbonyl group is present as an aldehydic group.”