A) \[23\]
B) \[32\]
C) \[12\]
D) \[20\]
Correct Answer: B
Solution :
Weight of copper oxide = 5 g Weight of copper taken = 4 g \[\therefore \]Weight of oxygen in copper oxide \[=5-4=1g\] \[\because \]Weight of copper, reacted with 1 g. \[{{O}_{2}}=4g\] \[\therefore \] Weight of copper, which would react with 8g \[{{O}_{2}}=\frac{4\times 8}{1}=32g.\]. Hence, equivalent weight of copper = 32
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