The presence of starch in a food item can be shown by

Iodine

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

Copper sulphate solution

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

Caustic soda

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

All of the above

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

Open in App

Solution

The correct option is A
Iodine

Iodine test is used for testing carbohydrates; specifically starch. Food containing starch will turn deep purple when iodine is applied.

Suggest Corrections

Similar questions

The presence of _________ is detected by addition of copper sulphate and caustic soda solutions?

Q54) Consider the following statements

i) Iodine solution is used to test the presence of fat.

ii) Vitamins have no nutritive value, but provide protection against disease.

iii) Mixture of copper sulphate and caustic soda is used to test the presence of proteins.

Which of the above statements are true?

When copper sulphate and caustic soda are added to a food sample, a violet color indicates the presence of proteins in the food.

In an experiment, Radha took small amounts of an unknown food item in a test tube. Then, she added two drops of copper sulphate solution in the test tube along with a few drops of caustic soda solution. After a few minutes, the colour of the food item changed to violet.

In the given experiment, the change in colour of the food item to violet indicates the presence of

Q. Anurag wanted to test for the presence of starch in different food items. He had four different chemicals. Which of the following should he use for his test?
(a) iodine
(b) an acid
(c) copper sulphate
(d) potassium hydroxide

Join BYJU'S Learning Program

The presence of starch in a food item can be shown by

The correct option is A Iodine Iodine test is used for testing carbohydrates; specifically starch. Food containing starch will turn deep purple when iodine is applied.

The correct option is A
Iodine

Iodine test is used for testing carbohydrates; specifically starch. Food containing starch will turn deep purple when iodine is applied.