A carbohydrate $(\mathrm{A})$, when treated with dilute HCl in alcoholic solution gives two isomers (B) and (C). B on reaction with bromine water gives a monocarboxylic acid ' $Z$ ' and ' C ' is a ketohexose. What is A ?

• A

  Starch
• B

  Maltose
• Correct answer
  C

  Sucrose
• D

  Lactose

Hence, the correct answer is option: 'C'.