Multiple choice

A student has taken a sample of raw food in a test tube and added a few drops of dilute iodine solution in it. Which colour would be observed if the food material is rich in starch?

  1. Reddish brown

  2. Blue-black

  3. Light pink

  4. Orange

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Presence of starch in a food material can be determined by adding iodine solution into it, which gives blue-black colour to the solution.