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प्रश्न
Give one major drawback of Dalton's atomic theory of matter.
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उत्तर
Dalton's atomic theory states that atoms are indivisible; however, under special circumstances, atoms can be further divided into smaller particles called electrons, protons and neutrons. So, atoms are made of subatomic particles into which they can be broken or divided.
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संबंधित प्रश्न
Which postulate of Dalton’s atomic theory can explain the law of definite proportions?
Which postulate of Dalton's atomic theory is the result of law of conservation of mass given by Lavoisier ?
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 less electrons than the normal atoms ?
What do we call those particles which are formed by the gain of electrons by atoms ?
What do we call those particles which are formed by the loss of electrons by atoms ?
State the law of constant proportions.
Ruthresh, Hari, Kanishka, and Thahera collected different samples of water from a well, a pond, a river, and underground water. All these samples were sent to a testing laboratory. The test result showed the ratio of hydrogen to oxygen as 1:8.
- What conclusion would you draw from the above experiment?
- Which law of chemical combination does it obey?
