Question

a) List any two change which take place when oily food gels oxidized.
(b) Mention a measure which prevents or slows down its oxidation


CBSE Class X Science SA 1 ( 2 marks)

Answer 1

(a) (i) Food becomes rancid.
(ii) Its taste and smell changes.
(b) Keeping food in air tight containers/flushing the container with an inert gas like Nitrogen (N2).

Answer 2

When oily foods get oxidized, it is called food rancidity. When food becomes rancid, the two immediate changes in foods are seen are change of taste and change of small which turns into unpleasant odor.

Rancidity can be prevented by storing food away from dust and sunlight, and preserving them in cool dry place preferable in a well washed, dry, and air tight container.