Question

During the reaction of some metals with dilute hydrochloric acid, the following observanons were
made by a student:
(a) Silver does not show any change.
(b) Some bubbles of a gas are seen when lead is reacted with the acid.
(c) The reaction of sodium is found to be highly explosive.
(d) The temperature of the reaction mixture rises when aluminium is added to the acid.
Explain these observations giving appropriate reason.​

Answer 1

Explanation:

a)silver doesn't show any change because it is below hydrogen in the reactivity table

b)when lead reacts with the acid,bubbles of hydrogen is formed

c)this is because it is an acid- base reaction

d) it is an exothermic reaction