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Oxides of Nitrogen

Which of the ...

Question

Which of the following oxides of nitrogen is the an hydride of nitrous acid?

A

N O

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B

N_{2} O_{3}

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C

N_{2} O_{4}

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D

N_{2} O_{5}

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Solution

The correct option is A $N_{2} O_{3}$
Two oxides of nitrogen are acid anhydrides; that is, they react with water to form nitrogen-containing oxyacids. Dinitrogen trioxide( $N_{2} O_{3}$ ) is the anhydride of nitrous acid, HNO2, and dinitrogen pentoxide( $N_{2} O_{5}$ ) is the anhydride of nitric acid, HNO3.
Hence option B is correct.

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Similar questions

Which one of the following nitrogen oxides is an anhydride of nitrous acid ?

Q. The nitrogen oxides that contain N – N bond(s) is:

Q. Which of the following oxides of nitrogen is the anhydride of nitrous acid?

Q. Which of the following oxides is anhydride of nitrous acid?

Nitrogen forms largest oxides as it is capable of forming stable multiple bonds with oxygen. They range from

N_{2} O

(O.S of nitrogen +1) through

N O, N_{2} O_{3}, N_{2} O_{4}

N_{2} O_{5}

(O.S of nitrogen +5).

The following points are important regarding the oxides of nitrogen.

(a) All oxides of nitrogen except

N_{2} O_{5}

are endothermic because large amount of energy is required to dissociate the stable molecule of oxygen and nitrogen.

(b) The small electronegativity difference between oxygen and nitrogen makes N-O bond easily breakable to give oxygen and hence oxides of nitrogen are said to be better oxidizing agents.

N_{2} O_{5}

, all are gases at ordinary temperature.

N_{2} O_{3}

is stable only at a lower temperature (253 K).

N_{2} O

N O

which are neutral oxides, all are acidic oxides that dissolve in water forming corresponding oxyacids.

(e) They are also a good example of illustrating the concept of resonance.

The gas which is acidic in nature is ________.

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