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प्रश्न
In water, the proportion of oxygen and hydrogen by mass is :
पर्याय
1 : 4
1 : 8
4 : 1
8 : 1
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उत्तर
8:1
In water, the ratio of oxygen to hydrogen is 8:1 by mass.
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संबंधित प्रश्न
Name the scientist who gave law of constant proportions.
Name the scientist who gave atomic theory of matter.
Name any two laws of chemical combination.
State the various postulates of Dalton’s atomic theory of matter.
Which postulate of Dalton’s atomic theory can explain the law of constant proportions ?
The law of constant proportions was given by :
What do we call those particles which have more or less electrons than the normal atoms ?
What do we call those particles which are formed by the gain of electrons by atoms ?
Work out the formulae for the following compounds:
Calcium carbonate
Two samples ‘m’ and ‘n’ of slaked lime were obtained from two different reactions. The details about their composition are as follows:
- ‘sample m’ mass: 7g
- Mass of constituent oxygen: 2g
- Mass of constituent calcium: 5g
- ‘sample n’ mass: 1.4g
- Mass of constituent oxygen: 0.4g
- Mass of constituent calcium: 1.0g
Which law of chemical combination does this prove? Explain.
