Question

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.

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

Answer 1

The correct option is C (i), (iii) and (iv)

$2A+B\to A_{2}B$
In this reaction $A$ and $B$ always reacts in a fix proportion and forms a compound which doesn't show properties of $A$ and $B$.