A sample of 1.375g cupric oxide, when reduced in a stream of hydrogen gave
1.158g Cu. On the other hand, a sample of 1.179g pure Cu gave 1.413g cupric
oxide when Cu was in HNO3 and nitrate formed was heated strongly to get cupric
oxide. These data prove
a. Law of conservation of mass. b. Law of definite proportion.
c. Law of multiple proportion. d. None of the above
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A sample of 1.375g cupric oxide, when reduced in a stream of hydrogen gave
1.158g Cu. On the other hand, a sample of 1.179g pure Cu
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