Question

9. The component of food that makes paper translucent. ( )

A) Starch B) Protein C) Fats D) Fibres


10. A drop of ____________ solution, put on the cut surface of a potato is

turned blue black in colour.

A) CUSO4 B) NaOH C) Iodine ​

Answer 1

9) (c) FATS
Reason:- fats contain fatty acids and glycerol which makes paper translucent.
10) (c) iodine
Reason:- potatoes contain carbohydrates (starch) because of which it turns blue-black when iodine is added.
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Answer 2

9. The component of food that makes paper translucent.

C) Fats

10. A drop of C) Iodine solution put on the cut surface of a potato is turned blue-black in color.

C) Iodine.

1. When fat sticks to the paper it allows more light to transmit through it that is why paper becomes translucent
2. When we drop iodine solution on a cut surface of potato the area that comes in contact turn in blue-black because of the presence of starch.