Question

A student was given Mn, Zn , Mg and Hg . Identify which of them :
(a) will not displace H2 from dilute HCl.
(b) will react with only hot water to give H2 gas. Write the chemical equation involved in it.
(c) will give H2 with 5% dilute HNO3.
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PLS REPLY WITH EXPLANATION.....CLASS 10 CBSE

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Answer 1

Answer:

(a) Mn will not dispalce H2from diluteHCL

(b)Mg will react with only hot water to give H2gas