Question

A compound made of two elements A and B are found to contain 25% A (Atomic mass 12.5) and 75% B (Atomic mass 37.5). The simplest formula of the compound is 

(A) AB 

(B) AB₂

(C) AB₃ 

(D) A₃B 

Answer 1

A compound made of two elements A and B are found to contain 25% A (Atomic mass 12.5) and 75% B (Atomic mass 37.5). The simplest formula of the compound is  AB.

Explanation :-

 

Elements	% Composition	Atomic Mass	Moles	Ratio
A	25	12.5	25/12.5=2	2/2=1
B	75	37.5	75/37.5=2	2/2=1