Question

2. 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 destroved 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

HOPE IT HELPS.

Answer 2

Answer:

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 destroved 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.