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State the law of constant proportions. G...

State the law of constant proportions. Give one example to illustrate this law.

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LAKHMIR SINGH & MANJIT KAUR-ATOMS AND MOLECULES-Exercise
  1. Calculate the molecular masses of the following compounds : (a) Hy...

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  2. State the law of conservation of mass. Give one example to illustrate...

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  3. State the law of constant proportions. Give one example to illustrate ...

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  4. (a) State the various postulates of Dalton's atomic theory of matter...

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  5. (a) What is the significance of the symbol of an element ? Explain w...

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  6. (a) What is an atom ? How do atoms usually exist ? (b) What i...

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  7. (a) Define atomic mass unit. What is its symbol ? (b) Define atomic...

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  8. The atomicites of ozone, sulphur, phosphorus and argon are respectivel...

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  9. The symbol of a metal element which is used in making thermometers is ...

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  10. The Latin language name of an element is natrium. The English name of...

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  11. The atomic theory of matter was proposed by :

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  12. One of the following elements has an atomicity of 'one' . This ele...

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  13. The English name of an element is potassium, its Latin name will be...

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  14. The law of conservation of mass was given by :

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  15. The element having atomicity 'four' is most likely to be :

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  16. If 1.4 g of calcium oxide is formed by the complete decomposition of c...

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  17. The law of constant proportions was given by

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  18. Out of ozone, phosphorus, sulphur and krypton, the elements having the...

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  19. One nm is equal to :

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  20. The scientist who proposed the first letter (or first letter and anoth...

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