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प्रश्न
The atomic theory of matter was proposed by :
पर्याय
John Kennedy
Lavoisier
Proust
John Dalton
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उत्तर
John Dalton
The atomic theory of matter was proposed by John Dalton.
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संबंधित प्रश्न
Which postulate of Dalton’s atomic theory can explain the law of definite proportions?
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.
Which postulate of Dalton’s atomic theory can explain the law of constant proportions ?
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.
When 5 g of calcium is burnt in 2 g of oxygen, then 7 g of calcium oxide is produced. What mass of calcium oxide will be produced when 5 g of calcium is burnt in 20 g of oxygen ? Which law of chemical combination will govern your answer ?
What do we call those particles which have more 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:
Calcium carbonate
