10 g of a metal (M) reacts with oxygen to form 11.6 g of onide. What is the equivalent weight of M?

10 g of a metal (M) reacts with oxygen to form 11.6 g of onide. What is the equivalent weight of M?
  1. 50 g
  2. 0.02
  3. 0.02 g
  4. 50

Solution

$\begin{aligned} & \text { Equivalent weight of metal } \\ & =\left(\frac{10}{11.6-10}\right) \times 8 \\ & \\ & =\frac{10}{1.6} \times 8 \\ & \\ & =50 \end{aligned}$ $\left[\begin{array}{rl} \text { NOTE } & \rightarrow \text { Equivalent weight of metal } \\ & =\frac{\text { Mass of metal }}{\text { Mass of oxygen }} \times \text { Equivalent weight }(\text { oxygen }) \end{array}\right]$

Asked in: AP EAMCET 2024 (22 May Shift 1)

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