Question

Which metal gives hydrogen with acid and alkali
both?

a) Copper
b) Zinc

Answer 1

Answer:Sodium, being the most reactive metal, easily reacts with water, acid and base to liberate hydrogen. The reactions are as follows:

2Na+2H  

2

​  

O→2NaOH+H  

2

​  

 

2Na+H  

2

​  

SO  

4

​  

→Na  

2

​  

SO  

4

​  

+H  

2

​  

 

2Na+H  

2

​  

CO  

3

​  

→Na  

2

​  

CO  

3

​  

+H  

2

​

Explanation: