Question

An oily patch on paper shows the presence of which food ingredient ?​

Answer 1

Fats

An oily patch on paper shows that the food has fats. Sometimes, the food items may contain a little water. Therefore, after you have rubbed an item on paper, let the paper dry for a while. If there was any water in the food, it would show up on the paper and dry up after some time.

Answer 2

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An oily patch on paper shows that the food has fats. Sometimes, the food items may contain a little water. Therefore, after you have rubbed an item on paper, let the paper dry for a while. If there was any water in the food, it would show up on the paper and dry up after some time.