Question

give reaction of acid with metal HNO3-unique​

Answer 1

it does not reacts with the HNO3

Answer 2

Metal does not react with HNO3 because HNO3 is a strong oxidising agent it oxidise Hydrogen gas and forms water that is not required.

So that's why we use HILL in place of HNO3 .

A condition is there HNO3 reacts with manganese and magnesium.