Question

In a metal oxide, $32\%$ oxygen is present. What will be the equivalent mass of metal?

• A. $17$
• B. $34$
• C. $32$
• D. $52$

Answer 1

Answer: (A)

$17$

In $100g$,we have $32g$ of oxygen.

And, $100-32=68g$ of metal

$\frac{Massofmetal}{Massofoxygen}=\frac{Eq.wt.ofmetal}{Eq.wt.ofoxygen}$

$\frac{68}{32}=\frac{x}{8}$

$x=\frac{68\times 8}{32}$

$x=17gram$

Hence, option $A$ is correct.