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An oxide of a bivalent metal contains 40...

An oxide of a bivalent metal contains 40%, by mass, of oxygen. The atomic mass of the metal is

A

12

B

24

C

60

D

40

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The correct Answer is:
B
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CENGAGE CHEMISTRY-EQUIVALENT MASS -MANDATORY EXERCISE Exercise Set I
  1. Equivalent mass of an element is

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  2. The mass of 22.4 dm^(3) at STP for any gas gives its

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  3. An oxide of a bivalent metal contains 40%, by mass, of oxygen. The ato...

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  4. 1 g of hydrogen combines with 80 g of bromine, and 1 g of calcium comb...

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  5. 3.15 g of metal oxide is reduced to 1.05 g of the metal. The equivalen...

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  6. The equivalent mass of Sn in SnCl(2) is (atomic mass of Sn = 119)

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  7. The equivalent mass of Al in Al(2)O(3) is (atomic mass of Al = 27)

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  8. When 6 g of magnesium reacts with excess mass of acid, the amount of h...

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  9. How many molecules are present in 1 equivalent of hydrogen?

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  10. What is the equivalent volume of oxygen at N.T.P?

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  11. The equivalent weight of a metal is 12. What is equivalent weight of i...

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  12. 0.2 g of oxygen and 3.17 g of a halogen combine sepaartely with the sa...

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  13. If W(1)andW(2) are the equivalent weight of two reactants in any reati...

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  14. If 0.5 equivalent of H(2)SO(4) undergoes complete dissociation. What w...

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  15. Equivalent weight of sulphur in SCl(2) is 16, whart is the equivalent ...

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  16. The equivalent weight of a metal is double that of oxygen. How many ti...

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  17. Fe forms two chlorides, FeCl(2)andFeCl(3). Does Fe have the same value...

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  18. 1.80 g of a metal oxide required 833 ml of hydrogen at N.T.P. to be re...

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  19. 5 g of Zn displaced 4.86 g of Cu from a copper sulphate solution. If Z...

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  20. 2 g of a metal when dissolved in nitric acid converted to its nitrate....

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