Chemistry
Grade-9
Easy
Question
If water samples are taken from sea, rivers or lakes, they will be found to contain hydrogen and oxygen in the approximate ratio of 1:8. This indicates the law of
- Law of conservation of mass
- Law of definite proportion
- Law of multiple proportion
- Law of reciprocal proportion
Hint:
Law of definite proportion states that chemical compound always contains its elements in fixed ratio (by mass) and does not depend on its source and method of preparation.
The correct answer is: Law of definite proportion
- Law of definite proportion states that chemical compound always contains its elements in fixed ratio (by mass) and does not depend on its source and method of preparation.
- Sea, rivers and lakes waters are from different sources but at the end it is water.
- If water samples are taken from sea, rivers or lakes, they will be found to contain hydrogen and oxygen in the approximate ratio of 1:8. This indicates the law of definite proportions.
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