Question

Which of the following chemical can be used to detect starch, a common adulterant in milk?

• A. Sodium chloride
• B. Iodine
• C. Hydrochloric acid
• D. Sodium hydroxide

Answer 1

The correct option is B Iodine

Adulteration of milk reduces the quality of milk and can even make it hazardous. Adulterants like soap, acid, starch, table sugar and chemicals like formalin may be added to the milk. Most of the it chemicals used as adulterants are poisonous and cause health hazards. In this, Iodine is used to detect the starch, because starch contains amylase.

So, the correct option is 'Iodine'.