Question

Which of the following metals liberate hydrogen with 5% HNO3 ?
(i) Cu
(ii) Zn
(iii) Mn
(iv) Mg
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) (i) and (iv)

Answer 1

Answer:

its option c.

thank you

Answer 2

Answer:

the snswer is option c......