Question

A non-metal used to preserve food material is:

a) Carbon

b) Phosphorus

c) Sulphur

d) Nitrogen​

Answer 1

d) Nitrogen

Step-by-step explanation:

Nitrogen is a non-metal that is used to preserve food material. It is an inert gas that does not react with other substances, so it does not spoil food. Nitrogen is also used to fill food packaging to displace oxygen and moisture, which can cause food to spoil.

Carbon, phosphorus, and sulfur are all elements that can react with other substances, so they are not used to preserve food material.

So, the answer is d) Nitrogen
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