Question

Give reason for the following:
a) Though lead is above hydrogen in the activity series,it does not react with dil HCl or dil.H 2 SO 4 .
b) Potassium and sodium are not used for reaction with dil HCl or dil.H 2 SO 4 in laboratory
preparation of hydrogen.

Answer 1

(a) Gases can't react with dilute acids.

(b)High reactive metals like potassium and sodium don't react with dilute acids.