Two substances, A and B were made to react to form a third substance, `A_(2)B` according to the following reaction `2A+B to A_(2)B`.Which of the following statements concerning this reaction are incorrect?
(i) The product `A_(2)B` shows the properties of substances A and B.
(ii) The product will always have a fixed composition.
(iii) The product so formed cannot be classified as a compound.
(iv) The product so formed is an element.

Options

A. (i), (ii) and (iii)
B. (ii), (iii) and (iv)
C. (i), (iii) and (iv)
D. (ii), (iii) and (iv)

Answer

C

Explanation

`A_(2)B` is a compound made up of two elements A and B in a fixed ratio. The Properties of a compound (e.g., `A_(2)B`) are entirely different from those of its constituent elements (e.g., A and B). The composition of a compound is fixed.