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

Complex proteins

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Simple proteins

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Fats

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Starch

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D Starch
Rice is the richest source of carbohydrates (starch). There are two component of starch amylose (10-20%) and amylopectin (80-90%). Amylose in starch is responsible for the formation of a deep blue color in the presence of iodine. The iodine molecule slips inside of the amylose coil.
So, the correct answer is option D.

Suggest Corrections

Similar questions

Question 8
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

Q. A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. What does this indicate?

Q. A few drops of iodine solution were added to rice water. The solution turned blue black in colour which indiates that rice water contains

Q. Shaila took about

10 c m^{3}

of a diluted Potassium hydrogen carbonate solution in a test tube. To this solution she added few drops of universal indicator. The colour of the solution turned :

Q. The color of the iodine solution turns blue-black when it is added to a slice of bread. This indicates that the bread is rich in:

Join BYJU'S Learning Program