Question

Very Short Answer Type Questions
1. A foodstuff gives a blue black colour with dilute iodine solution. Name the constituent of food indicated by
this test
2. Name the solution which can be used to test the presence of starch in a food.
3. Which vitamin is easily destroyed by heat during the cooking of food ?
4. When a little of food material is rubbed in the centre of a paper and then the paper is held towards light, a
bright greasy patch (translucent patch) is observed. Name the component of food indicated by this test.
5. When the suspension of a food stuff is made alkaline by adding a little of sodium hydroxide solution and
then a few drops of copper sulphate solution are added, a violet colour is produced. Name the constituent
of food indicated by this test.
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Answer 1

1) A potato.

2)Dilute iodine solution.

3)vitamin c.

4)oil.

5)Milk.