Question

Q3. Which of the following are not compounds? a) Chlorine gas b) Water c) Sodium chloride (d) carbon dioxide​

Answer 1

Answer:

Chlorine Gas is not a compound.

Explanation:

here here chlorine gas is not a compound because it is constituted only of chlorine element but water is a compound of hydrogen with oxygen, sodium chloride is a compound of sodium with chlorine and carbon dioxide is the compound of carbon with oxygen.

Thus Opt (a) is correct