Law of definite proportions - class-VIII

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Multiple Choice

In an experiment, 2.4 g of iron oxide on reduction with hydrogen gave 1.68 g of iron. In another experiment, 2.9 g of iron oxide gave 2.09 g of iron on reduction. Which law is illustrated from the above data?

  1. Law of constant proportions
  2. Law of multiple proportions
  3. Law of reciprocal proportions
  4. Law of conservation of mass
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