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

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

A CaO + 2HNO₃ â†’ Ca(NO₃) ₂ + H ₂O
B Cu + 4HNO₃ â†’ Cu(NO ₃)₂ + 2H₂O + 2NO₂
C S + 6HNO₃ â†’ H₂SO ₄ + 6NO₂ + 2H₂O
D P + 5HNO₃ â†’ H ₃PO ₄ + 5NO₂ + H₂O

waec 2001 chemistry

The correct answer is A. CaO + 2HNO₃ â†’ Ca(NO₃) ₂ + H ₂O

No explanation given

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