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Question 3 :
Along with all other nutrients, the body also needs an adequate supply of water.

Question 4 :
X is one of the important components of food. Wheat, pearl millet and sweet potato are rich sources of X, X gives a blue-black colour with a dilute solution of iodine. Identify X.

Question 6 :
Match List I with List II and select the correct answer using the codes given below the lists:<br><table class="wysiwyg-table"><tbody><tr><td></td><td>List-I</td><td></td><td>List-II</td></tr><tr><td>A.</td><td>Vitamin</td><td>1.</td><td>Pepsin</td></tr><tr><td>B.</td><td>Enzyme</td><td>2.</td><td>Carotene</td></tr><tr><td>C.</td><td>Hormone</td><td>3.</td><td>Keratin</td></tr><tr><td>D.</td><td>Protein</td><td>4.</td><td>Progesterone</td></tr></tbody></table>

Question 8 :
A green leaf is partially covered and placed in the light for several days. If it is then boiled and tested for starch with iodine, what will be the result?