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In an experiment 2.16 g of copper was di...

In an experiment 2.16 g of copper was dissolved in nitric acid followed by ignition of the nitrate, which gave 2.70 g of copper oxide. In another experiment 1.46 g of copper on heating in a curent of air gave 1.83 g of copper. Oxide.
The percentage of copper in copper oxide is _____________ and the abvoe data illustrate the law of ____________.

A

20 % definite proportion

B

80% multiple proportion

C

205 multiple proportion

D

805, definite proportion

Text Solution

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The correct Answer is:
D
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2.16 of copper metal when treated with nitric acid followed by ignition of the nitrate gave 2.70 g of copper oxide. In another experiment 1.15 g of copper oxide upon reduction with hydrogen gave 0.92 g of copper. Show that the above data illustrate the Law of Definite Proportions.

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