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Bihar Police SI Law of Constant Proportions — practice questions

Explore 1 free Law of Constant Proportions questions in Bihar Police SI Science. Open each question or exercise to read its content, reference answers and available explanation.

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Law of Constant Proportions questions and exercises with answers

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In water, the ratio of the mass of hydrogen to the mass of oxygen is always:Read the answer and worked solution →

Worked practice questions

In water, the ratio of the mass of hydrogen to the mass of oxygen is always:

  1. 2 : 1
  2. 1 : 8
  3. 8 : 1
  4. 1 : 2
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Correct answer: B. 1 : 8

1. Water is H2O: two H atoms (mass 1 each = 2) and one O atom (mass 16). 2. Mass ratio of hydrogen to oxygen = 2 : 16. 3. This simplifies to 1 : 8. _Source: RRB Group D CEN-02/2018 PYQ, Q.12._

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