Question

which of the following metals liberate hydrogen with 5% HNO3
i)C4
ii)Zn
iii)Mn
iv)Mg


options:
a) i &ii
b)ii &iii
c)iii & iv
d)i&iv​

Answer 1

Answer:

c ( iii&iv)

Explanation:

with remaining metals like c4 and zn it wont liberate hydrogen

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