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1 gram of hydrogen contains6xx10^(23) at...

1 gram of hydrogen contains`6xx10^(23)` atoms. Then 4 grams of He contains 

A

`6 xx 10^(23)` atoms

B

`12 xx 10^(23)` atoms

C

`24 xx 10^(23)` atoms

D

`1.5 xx 10^(23)` atoms

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A
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AAKASH SERIES-STOICHIOMETRY-Objective Exercise -1
  1. A chemical equation is always balanced with respect which one of the f...

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  2. Which of the following has highest mass?

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  3. 1 gram of hydrogen contains6xx10^(23) atoms. Then 4 grams of He contai...

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  4. Elements 'A' and 'B' combine in the ratio of their

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  5. Mg of a substance when vaporized occupy a volume of 5.6 litre at NTP. ...

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  6. Which among the following is the heaviest?

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  7. Molecular weight of orthophosphoric acid is M. Its equivalent weight i...

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  8. Which of the following acid has the same molecular weight and equivale...

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  9. The equivalent mass of CaCO(3)

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  10. 0.5g of a metal on oxidation gave 0.79g of its oxide. The equivalent m...

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  11. The vapour density of a volatile chloride of a metal is 59.5 and the e...

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  12. Which one of the relationship is wrong?

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  13. Total number of atoms in 44g of CO2 is

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  14. The flask A and B of equal size contain 2g of H2 and 2g of N2 repectiv...

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  15. The following is not a fixed quantity

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  16. Equivalent weights of K(2)Cr(2)O(7) in acidic medium is

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  17. The equivalent weight of Bayer.s reagent is

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  18. Molecular weight of KMnO(4) is "M". In a reaction KMnO(4) is reduced t...

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  19. When Ferrous sulphate acts as reductant, its equivalent weight is

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  20. 2H(2)Orarr 4e^(-)+O(2)+4H^(+).The equivalent weight of oxygen is

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