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

2 A + B A2B


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.


A2B is a compound made up of two elements A and B which are present in a fixed ratio. The properties of a compound (e.g. A2B) are entirely different from those of its constituent elements (i.e., A and B). The product will always have a fixed composition.

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