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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 composition
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DISHA PUBLICATION-SOME BASIC CONCEPTS OF CHEMISTRY-Exercise
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  2. Which of the following statements is correct about the reaction given ...

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

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  4. What is the mass of 1 molecule of CO?

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  5. How many atoms are contained in one mole of sucrose (C(12)H(22)O(11))?

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  6. I cc N(2)O at NTP contains

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  7. Two containers P and Q of equal volume (1 litre each) contain 6 g of ...

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  8. A sample of AIF(3) contains 3.0 xx 10^(24) F^(-) ions. The number of f...

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  9. Which one of the following is the lightest?

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  10. Arrange the following in the order of increasing mass (atomic mass: O...

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  11. The ratio of number of oxygen atoms (O) in 16.0g ozone (O(3)) . 28.0g ...

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  12. A mixture of CH(4), N(2) and O(2) is enclosed in a container of 1 lit...

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  13. The number of gram molecules of oxygen in 6.02 xx 10^(24) CO molecu...

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  14. The number of molecules in 16 g of methane is

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  15. 25.4 gm of iodine and 14.2 gm of chlorine are made to react completely...

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  18. The number of moles of oxygen in 1 L of air containing 21% oxygen by v...

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  19. Haemoglobin contains 0.33% of iron by weight. The molecular weight of ...

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  20. How many moles of P(4)O(6) and P(4)O(10) will be produced by the comb...

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