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Avogadro number of helium atoms have a m...

Avogadro number of helium atoms have a mass of 

A

2g

B

4g

C

8gms of oxygen

D

`4xx6.02xx10^(23)g`

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The correct Answer is:
B
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AAKASH SERIES-STOICHIOMETRY-OBJECTIVE EXERCISE - 1
  1. The weight of 0.1 mole of Na(2)CO(3) is

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  2. The molar mass of a substance is 20g. The molecular mass of the substa...

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  3. Avogadro number of helium atoms have a mass of

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  4. The volume of two moles of oxygen at STP

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  5. The following property of a gas does not vary with pressure and temper...

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  6. The ratio between the number of molecules in equal masses of nitrogen ...

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  7. The gas which is twice as dense as oxygen under the same conditions is

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  8. 1 mole of water vapour is condensed to liquid at 25^(@)C. Now this wat...

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  9. A chemical equation is always balanced with respect which one of the f...

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  10. Which of the following has highest mass?

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  11. 1 gram of hydrogen contains6xx10^(23) atoms. Then 4 grams of He contai...

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

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

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

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  15. The equivalent mass of CaCO(3)

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  16. The following is not a fixed quantity

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

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  18. The equivalent weight of Bayer's reagent is

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

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

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