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A sample of pure carbon dioxide, irrespe...

A sample of pure carbon dioxide, irrespective of its source contains `27.27%` carbon and `72.73%` oxygen. The data support

A

Law of constant composition

B

Law of conservation of mass

C

Law of reciprocal proportions

D

Law of multiple proportions

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The correct Answer is:
A
Law of constant proportions
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NARAYNA-SOME BASIC CONCEPTS IN CHEMISTRY STOICHIOMETRY (PART-I)-All Questions
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  2. Law of multiple proportions is illustrated by one of the following pai...

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  3. A sample of pure carbon dioxide, irrespective of its source contains 2...

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  5. Which of the following has highest mass

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  6. 1.5 moles of oxygen atoms are present in

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  7. The number of atoms in 4.25 g of NH(3) is approximately

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  8. 12 gm of an alkaline earth metal gives 14.8 g of its nitride. The atom...

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  9. The isotopes of chlorine with mass numbers 35 and 37 exist in the rati...

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  10. The gas having same number of molecules as 16g of oxygen is

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  11. The weight of gaseous mixture containing 6.02 xx 10^(23) molecules of ...

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  12. The density of a gas at S.T.P is 1.50 grams per litre. The molecular w...

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  13. The no of electrons present in one mole of Azide ion are (N(3)^(-))

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  14. If the mass of an electron is 9 xx 10^(-28) grams weight of one mole o...

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  15. If the weight of 5.6 litres of a gas at N.T.P. is 11 gram. The gas may...

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  16. Number of milli moles in 1.0 gram of water

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  17. Which of the following contains maximum number of molecules

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  18. The total volume of mixture of 2 gms of helium and 7 gms of nitrogen u...

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  19. The number of atoms present in 10 gms of CaCO(3) are

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  20. How many molecules are present in one in one gram of hydrogen?

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