Question

Two substances A and substance B when brought together forms a substance C with liberation of heat .the properties of C are entirely different from those of A and B. What is substance C ?
a) metal
B) element
C) compound
D) mixture

Answer 1

• When two substances are brought together and large amount​ of heat is evolved which shows that the new substance is stable than A and B because of which heat is produced.
• The substance will be less reactive than A and B.
• Hence the substance C is compound.