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Mole fraction of nitrogen in air is...

Mole fraction of nitrogen in air is

A

0.14

B

0.28

C

0.5

D

0.78

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The correct Answer is:
D
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AAKASH SERIES-REVISION EXERCISE -VA GROUP ELEMENTS
  1. Mole fraction of nitrogen in air is

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  2. Bond energy of N-N is x kJ "mol"^(-1). Then bond energy of N-=N is

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  3. White phosphorus molecule (P(4)) doesn't have

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  4. The following statements are about VA group elements: i) As and Sb a...

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  5. X' is a neutral oxide. On exposure to air 'X' is converted to 'Y', whi...

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  6. {:(LIST-1,LIST-2),("A) "N2O,"1) "sp^2" and planar triangle"),("B) "HNO...

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  7. PCl(5)+Cl^(-) to PCl(6)^(-). The wrong statement regarding the above e...

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  8. Nitrogen dioxide

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  9. Which of the following acids possess oxidising, reducing and complex f...

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  10. One mole of magnesium nitride on reaction with an excess of water give...

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  11. Li and Mg both combine with N(2) at high temp. This suggest that the t...

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  12. Freezing of food articles can be done using

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  13. Which oxide does not act as a reducing agent ?

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  14. The cyanide ion, CN^(-) and N(2) are isoelectronic. But in contrast to...

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  15. Which one has the highest percentage of nitrogen?

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  16. The following are some statements about oxides of VA group elements ...

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  17. Atomicity of dimeric phosphorous pentoxide is 'x' and the number of sh...

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  18. Which of the following on heating undergoes disproportionation

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  19. The number of P-P bonds in cyclotrimeta phosphoric acid is

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  20. The oxide involved in the formation of brown ring for testing nitrate...

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