Question

Which of the following is an element
a) mercury
b) ammonia
C) water
d) glucose​

Answer 1

Answer:

b) ammonia

Explanation:

Ammonia is a chemical compound. It is made up of 2 elements, namely Nitrogen and Hydrogen in the ratio 1:3 (NH3). According to the rules, an element is a substance that cannot be broken down into simpler substances by chemical means.

Answer 2

Answer:

a) mercury is an element