Question

Which one of the following is not a characteristic of a compound?
A) Composition is variable. B) All particles of compound are of only one type. C) Particles of compound have two or more elements. D) Its constituents cannot be separated by simple physical methods.

Answer 1

C) Particles of compound have two or more elements.

This is because compound consists of one-type molecules which are made up of 2 or more elements.