Question

student was given Mn , Zn , Fe , Au and Mg metals. Identify which of them –

1) Will react with steam only to give H2 gas ?

2) Will not displace hydrogen from dil. HCl ?

3) Will react with cold water to form metal hydroxide and hydrogen gas ?

4) Will give H2 with 5% HNO3 ?

5) Write the chemical reactions involved ?​

Answer 1

Answer:

Since copper is less reactive than that of hydrogen, thus it will not displace H

2

from dil HCl.