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The volume percentage of N(2) in air is ...

The volume percentage of `N_(2)` in air is 78. The Weight percentage of the same

A

75

B

78

C

80

D

85

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The correct Answer is:
A
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AAKASH SERIES-VA GROUP ELEMENTS-PRACTICE EXERCISE
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  2. A mixture of potassium nitrite and ammonium chloride on heating libera...

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  3. Which statement is not correct for nitrogen?

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  4. If the nitrogen atoms are in a cyclic arrangement in hydrazoic acid, t...

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  5. The allotrope of phosphorous obtained by heating white phosphorous to ...

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  6. Which of the following can acts as both oxidant and redutant

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  7. Concentrated nitric acid oxidises phosphorous and iodine, respectively...

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  8. In solid state PCl(5), exists as ionic solid i.e., [X]^(+), [Y]^(-) sh...

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  9. In P(4)O(6) the number number of oxygen atoms bondedto each P atom is

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  10. P(4)O(10) on reactigwith watr does not form

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  11. The number of P-O bonds and lone pair of electrons present in P(4)O(6)...

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  12. Which is cyclic phosphate ?

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  13. Dinitrogem tetraoxide (N(2)O(4)) is a mixed anhydride because it

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  14. The oxyacid of phosphorous which has more non- ionisable hydrogens

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  15. PCl(5) exists but NCI(5) does not. This is because of

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  16. In the oxyacids of phosphorous the hybridisation of phosphorous is

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  17. Which of the following is a neutral salt ?

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  18. An acidic hydride of nitrogen is

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  19. The volume percentage of N(2) in air is 78. The Weight percentage of t...

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  20. The largest bond angle is in

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