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Nitrogen forms the largest number of oxi...

Nitrogen forms the largest number of oxides as it is capable of forming stable multiple bonds with oxygen.They range from `N_2O`(O.S of nitrogen+1) through `NO, N_2O_3,NO_2,N_2O_4` to `N_2O_5`(O.S of nitrogen +5).
Following points are important regarding the study of oxides of nitrogen.
(a)All oxides of nitrogen except `N_2O_6` and endothermic as a large amount of energy is required to dissociate the stable molecule of oxygen and nitrogen.
(b)The small electronegativity difference between oxygen and nitrogen make N-O bond easily breakable to give oxygen and hence oxides of nitrogen are said to be better oxidising agents.
(c )Except `N_2O_5`, all are gases at ordinary temperature. `N_2O_3` is stable only at lower temperature (253 K).
(d) Except `N_2O` and NO which are neutral oxides, all are acidic oxides which dissolve in water forming corresponding oxy acids.
(e)They are also good example for illustrating the concept the resonance.
The gas which is acidic in nature is :

A

NO

B

`N_(2)O`

C

`NO_(2)`

D

both A and C

Text Solution

Verified by Experts

The correct Answer is:
C
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Nitrogen forms the largest number of oxides as it is capable of forming stable multiple bonds with oxygen. They range of N_(2)O (O.S of nitrogen +1) through NO, N_(2)O_(3),NO_(2),N_(2)O_(4) "to" N_(2)O_(5) (O.S of nitrogen +5). Following points are improtant regarding the study of oxides of nitrogen. (a) All oxides of nitrogen expect N_(2)O_(5) are endothermic as a large amount of energy is required to dissociate the stable molecule of oxygen and nitrogen. (b) The small electronegativity difference between oxygen and nitrogen make N-O bond easily breakle to give oxygen and hence oxides of nitrogen are said to be better oxidising agents. (c) Expect N_(2)O_(5) , all are gases at ordinary temperature. N_(2)O_(3) is stable only at lower temperature (253K). (d) Expect N_(2)O and NO which are neutal oxides, all are acidic oxides which dissolve in water forming coresponding oxy acids. (e) They are also good example for illustrating the concept of resonance. The gas which is acidic in nature is :

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