Question

Two substances, A and B were made to react to form a third substance, A2B according to the following reaction

\[\ce{2A + B -> A2 B}\]

Which of the following statements concerning this reaction are incorrect?

(i) The product A2B 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

• (i), (ii) and (iii),

• (ii), (iii) and (iv)

• (i), (iii) and (iv)

• (ii), (iii) and (iv)

Answer 1

(i), (iii) and (iv)

Explanation:

\[\ce{2A + B -> A2 B}\]

The product A₂ B is a new compound formed hence, it does not show properties of A and B. The product formed is a compound and not an element.