Question

According to following reaction:
$A+B{O}_3\to A_3{O}_4+B_2{O}_3$
The number of moles of $A_3{O}_4$ produced if $1$ mole of $A$ is mixed with $1$ mole of $B{O}_3$ is :

• A. $3$
• B. $1$
• C. $\frac{1}{3}$
• D. $\frac{2}{3}$

Answer 1

Answer: (C)

$\frac{1}{3}$

Applying principle of atom conservation, when 1 mole of A and 1 mole of $B{O}_3$ are present, 1 mole of A will react with 0.67 mole of $B{O}_3$ to form $\frac{1}{3}$ moles of $A_3{O}_4$