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In which of the reactions represented by the following equat...

In which of the reactions represented by the following equations is HNO3 behaving as a typical acid?

A.

CaO + 2HNO3 → Ca(NO3) 2 + H 2O

B.

Cu + 4HNO3 → Cu(NO 3)2 + 2H2O + 2NO2

C.

S + 6HNO3 → H2SO 4 + 6NO2 + 2H2O

D.

P + 5HNO3 → H 3PO 4 + 5NO2 + H2O

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Correct answer is A

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