Question

a student has given mn, zn, fe and cu metals identify which of them will give hydrogen with 5% HNO3 write the chemical reaction involved

Answer 1

mn+hno3=mn(no3)2+no+h2o
zn+hno3=zn(no3)2+nh4no3+h2o
fe+hno3=fe(no3)3+no2+h20
cu+hno3=cu(no3)2+no+h20