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Q)

An oxide of metal contains $60\%$ of the metal. What will be the equivalent weight of the metal ?

$\begin{array}{1 1} (a)\;12 \\(b)\;40 \\ (c)\;24 \\ (d)\;48 \end{array} $

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A)
Solution :
mass of metal = 60 g
mass of oxygen = 40 g
mass of oxygen = mass of metal
$40 g= 60 g$
$8g =? $
$\qquad= \large\frac{8 \times 60}{40}$$=12$
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