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प्रश्न
Which part of the Dalton's atomic theory came from the law of constant proportions given by Proust ?
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उत्तर
The postulate of Dalton's atomic theory which came from the law of constant proportions proposed by Proust, states that “The 'number' and 'kind' of atoms in a given compound is fixed.”
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संबंधित प्रश्न
State the various postulates of Dalton’s atomic theory of matter.
The atomic theory of matter was proposed by :
In an experiment, 4.90 g of copper oxide was obtained from 3.92 g of copper. In another experiment, 4.55 g of copper oxide gave, on reduction, 3.64 g of copper. Show with the help of calculations that these figures verify the law of constant proportions.
What do we call those particles which have less electrons than the normal atoms ?
What do we call those particles which are formed by the loss of electrons by atoms ?
Work out the formulae for the following compounds :
Sodium oxide
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.
The same proportion of carbon and oxygen in the carbon dioxide obtained from different sources proves the law of ______.
State the law of constant proportions.
