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4 g of copper was dissolved in concentra...

4 g of copper was dissolved in concentrated nitric acid. The copper nitrate on strong heating gave 5 g of its oxide. The equivalent weight of copper is

A

23

B

32

C

12

D

20

Text Solution

Verified by Experts

The correct Answer is:
B
Cu = 4g CuO = 5g ` therefore ` Oxygen = 1 g
1g of oxygen combines with Cu = 4g
8g of oxygen will combine with `Cu = 4 xx 8 = 32 g`
` therefore` Eq. wt. of Cu = 32
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