Once Bala was explaining components of food to her friend Sakshi. While explaining carbohydrates, she said rice is a rich source of carbohydrates. Sakshi was very inquisitive to know the proof for this statement. Which of the following chemicals should Bala use to prove the presence of carbohydrates in rice?

Copper sulphate

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Iodine solution

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Butter paper

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Caustic soda

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Solution

The correct option is B
Iodine solution

Starch and sugar are two main carbohydrates present in rice. To prove this, iodine test can be performed. Iodine reacts with starch to give a blue-black colour.

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The correct option is B Iodine solutionStarch and sugar are two main carbohydrates present in rice. To prove this, iodine test can be performed. Iodine reacts with starch to give a blue-black colour.

The correct option is B
Iodine solution

Starch and sugar are two main carbohydrates present in rice. To prove this, iodine test can be performed. Iodine reacts with starch to give a blue-black colour.