Question

test the presence of fat

Answer 1

Answer:

to test the presence of fat

take a potato and peel it

now take some iodine and put some iodine drops on the peeled potato.

leave it and undisturb for sometime we will observe the potato colour changes into blue black colour this shows that fat is present in potato in a large amount.

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Answer 2

$\huge\bold{\underline{\underline{{Aim\: of\: the\: experiment:-}}}}$ To prove the presence of Fats in food.

$\huge\bold{\underline{\underline{{Materials\: required:-}}}}$ brown paper, source of light & food

$\huge\bold{\underline{\underline{{Procedure:-}}}}$ A small quantity of food is rubbed in the centre of Brown paper. The paper is held in front of the source of light .

$\huge\bold{\underline{\underline{{Diagram:-}}}}$In the attachment

$\huge\bold{\underline{\underline{{Observation:-}}}}$ The food has left a bright-greasy patch on paper .

$\huge\bold{\underline{\underline{{Inference:-}}}}$ The food contains fat as it is translucent.