Which of the following is not a chemical property of a substance?

- turns green when dissolved in water

- produces white flame when exposed to oxygen

- gives off brown fumes when treated with nitric acid

- conducts electricity

- reacts with chlorine

First of all you need to know that chemical properties are those who are determined by chemical tests and are related to the reactivity of chemical substances. In those statements you have 4 reactions, except on "conducts electricity". That is a physical property.

Explanation:

A chemical reaction is a way in which the atoms of the elements regroup to form new substances.