MHT CET · Chemistry · Some Basic Concepts of Chemistry
Which law is illustrated by compounds \(\mathrm{H}_2 \mathrm{O}\) and \(\mathrm{H}_2 \mathrm{O}_2\) formed from two different elements, H and O ?
- A Law of Constant proportion.
- B Law of Conservation of mass.
- C Law of Multiple proportion.
- D Avogadro's law.
Answer & Solution
Correct Answer
(C) Law of Multiple proportion.
Step-by-step Solution
Detailed explanation
The correct answer is (3) Law of Multiple Proportions.
Explanation:
The Law of Multiple Proportions states that when two elements combine to form more than one compound, the different masses of one element that combine with a fixed mass of the other element are in simple whole number ratios.
- \(\mathrm{H}_2 \mathrm{O}\) (water) and \(\mathrm{H}_2 \mathrm{O}_2\) (hydrogen peroxide) are two compounds formed by the combination of hydrogen (H) and oxygen ( O ).
- In \(\mathrm{H}_2 \mathrm{O}\), the ratio of hydrogen to oxygen is 2:1.
- In \(\mathrm{H}_2 \mathrm{O}_2\), the ratio of hydrogen to oxygen is 2:1 again, but the total amount of oxygen is doubled in \(\mathrm{H}_2 \mathrm{O}_2\) compared to \(\mathrm{H}_2 \mathrm{O}\).
This fits the Law of Multiple Proportions, as these two compounds involve different ratios of oxygen atoms that combine with a fixed amount of hydrogen.
Explanation:
The Law of Multiple Proportions states that when two elements combine to form more than one compound, the different masses of one element that combine with a fixed mass of the other element are in simple whole number ratios.
- \(\mathrm{H}_2 \mathrm{O}\) (water) and \(\mathrm{H}_2 \mathrm{O}_2\) (hydrogen peroxide) are two compounds formed by the combination of hydrogen (H) and oxygen ( O ).
- In \(\mathrm{H}_2 \mathrm{O}\), the ratio of hydrogen to oxygen is 2:1.
- In \(\mathrm{H}_2 \mathrm{O}_2\), the ratio of hydrogen to oxygen is 2:1 again, but the total amount of oxygen is doubled in \(\mathrm{H}_2 \mathrm{O}_2\) compared to \(\mathrm{H}_2 \mathrm{O}\).
This fits the Law of Multiple Proportions, as these two compounds involve different ratios of oxygen atoms that combine with a fixed amount of hydrogen.
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