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.
Answers
1) a potato.
2) Dilute iodine solution.
3)vitamin c
4)oil
5)milk
HOPE IT HELPS.
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.