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Two elements X and Y have atomic weight ...

Two elements X and Y have atomic weight of 14 and 16 . They form a series of compounds , A , B , C with fixed mass of X , Y is present in the ratio `1 :2 : 3 : 4 : 5` . If the compound A has 28 parts by weight of X and 16 parts by weight of Y , then the compound C will have 28 parts by weight of X and

A

32 parts by weight of Y

B

48 parts by weight of Y

C

64 parts by weight of Y

D

80 parts by weight of Y

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The correct Answer is:
B
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AAKASH SERIES-STOICHIOMETRY-Objective Exercise -2
  1. A sample of pure carbon dioxide, irrespective of its source contains 2...

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  2. Hydrogen combines with oxygen to form H(2)O in which 16 g of oxygen co...

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  3. Two elements X and Y have atomic weight of 14 and 16 . They form a ser...

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  4. n g of substance X reacts with mg of substance Y to form p g of substa...

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  5. A sample of calcium carbonate (CaCO(3)) has the following percentage c...

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  6. One mole of CH(4) contains

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  7. The number of molecules in one litre of water is (density of water = 1...

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  8. The number of water molecules in a drop of water weighing 5 mg is

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  9. The mass of oxygen required to prepare 2 moles of water is

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  10. The ratio between the number of molecules in equal masses of CH(4) and...

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  11. The number of sulphur atoms present in 0.2 mole of sodium thiosulphate...

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  12. The number of nitrogen molecules present in lc.c of gas at NTP is

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  13. The density of water is 1g/mL. Assuming that there are no intermolecul...

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  14. Oridinary water contain one part of heavy water per 6000 parts of wate...

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  15. A gaseous mixture contains oxygen and nitrogen in the ratio 1:4 by wei...

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  16. An alpha-particle changes into a Helium atom. In the course of one yea...

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  17. The number of oxygen atoms present in 50 g of calcium carbonate is

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  18. The mixture containing the same number of molecules as that of 14 g of...

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  19. The number of atoms of hydrogen present in 1.5 mole of H(2)O is

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  20. Which of the following contains the maximum number of atoms?

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