A. Sea water
B. Brass
C. Tape water
D. Graphite
E. Sand
Submitted by: Mansoor Ul Haque
In chemistry, a substance refers to a matter which has specific composition and specific properties which do not change. A substance can be an element or a compound. A substance typically has a constant composition, which can not be separated by physical methods. Seawater and sand are not substances, because they have varied compositions and their components can be separated by physical methods.
Correct Answer: Graphite ✔
Last Updated: April 09, 2018