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The brown fumes given off when trioxonitrate (V) acid is ...

The brown fumes given off when trioxonitrate (V) acid is heated consist of ?

A.

NO₂ and O₂

B.

H₂O and NO₂

C.

NO_2' O₂ and H₂O

D.

NO, NO₂ and H₂O

View answer & explanation

Correct answer is A

decomposition of the acid by heat to produce reddish-brown gas (nitrogen (iv)) which then dissolve in the acid to impart the yellow colour.

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