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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

`6xx10^(23)` atoms

B

`12xx10^(23)` atoms

C

`24xx10^(23)` atoms

D

`1.5xx10^(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. Molecular weight of orthophosphoric acid is M. Its equivalent weight i...

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

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  7. The equivalent mass of CaCO(3)

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  8. The following is not a fixed quantity

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  9. Equivalent weight of K(2)Cr(2)O(7) as oxidant in acidic medium is

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  10. The equivalent weight of Bayer's reagent is

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

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

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  13. 2H(2)Orarr 4e^(-)+O(2)+4H^(+).The equivalent weight of oxygen is

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  14. In acidic medium dichromate ion oxidises ferrous ion to ferric ion. If...

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  15. The equivalent weight of hypo in the reaction [M is molecular weight] ...

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  16. (A) : Equivalent weight of Cu in CuO is 63.6 and in Cu(2)O is 31.8. ...

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  17. The equivalent of iodine in the reaction 2Na(2)S(2)O(3)+I(2)rarr 2NaI+...

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  18. The equivalent weight of glucose in the reaction C(6)H(12)O(6)+6O(2)ra...

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  19. {:("Medium of","Equivalent weight"),("reaction","of "KMnO(4)),("A) Aci...

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  20. The number of millimoles of H(2)SO(4) present in 5 litres of 0.2N H(2)...

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