Advertisements
Advertisements
प्रश्न
While using iodine in the laboratory, some drops of iodine fell on Paheli’s socks and some fell on her teacher saree. The drops of iodine on the saree turned blue black while their colour did not change on the socks. What can be the possible reason?
उत्तर
The saree of Paheli’s teacher might have been starched. As starch turns blue black with iodine solution, so the saree also turned blue- black. Paheli’s socks did not have starch thus did not show any colour change.
APPEARS IN
संबंधित प्रश्न
Very Short Answer Type Questions:
Name some food items which provide roughage.
Short Answer Type Questions:
What are nutrients? Name major nutrients.
For what purposes do we need food?
Boojho was having difficulty in seeing things in dim light. The doctor tested his eyesight and prescribed a particular vitamin supplement. He also advised him to include a few food items in his diet.
- Which deficiency disease is he suffering from?
- Which food component may be lacking in his diet?
- Suggest some food items that he should include in his diet, (any four)
What do you mean by balanced diet?
Write a short note on the following:
Importance of a balanced diet
______ have a lengthy chain of monosaccharides that are joined together.
List and describe the three types of lipids found in foods.
Why does the body need proteins?
Name the macro-nutrients.
