Question

Mg+ 2HCl MgCl2  H2
(ii) Write two limitation of the reaction given in question (i).

Answer 1

Answer:

The reaction Mg(s)+2HCl→MgCl  

2

​

+H  

2

​

 represents a displacement reaction. Mg metal displaces hydrogen from HCl.

Note:

In a displacement reaction, a more reactive element displaces a less reactive element from its salt solution

Explanation: