Question 8 - MCQs from NCERT Exemplar - Chapter 6 Class 10 - Life Processes

Last updated at August 12, 2026 by

A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains

(A) complex proteins

(B) simple proteins

(C) fats

(D) starch

 

Answer

  • Iodine is used to test the presence of starch .
  • Since rice is a rich source of starch , when iodide solution is added to it, it turns blue-black.

Iodine test for presence of starch in rice solution-01.jpg

So, the correct answer is (d) 

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