Choose the correct answer from the given options.
ahil placed some pieces of chapati in test tube A. Neha placed chewed chapati in test tube B, and Santushti took boiled and mashed potato in test tube C. All of them added a few drops of iodine solution to their test tubes A, B, and C, respectively.
1. What colour change would you observe in test tubes A, B, and C after adding iodine solution?
.
2. Why does test tube B show a different result compared to A and C?
.