Question

When zinc metal is added to dilute sulphuric acid which gas is produced?

Answer 1

Answer:

zinc sulphate and hydrogen gas formed

Answer 2

Answer: hydrogen gas

Explanation:

A single replacement reaction is one in which a more reactive element displaces a less reactive element from its salt solution. Thus one element should be different from another element.

A general single displacement reaction can be represented as :

$A+BC\rightarrow AC+B$

When zinc metal is added to dilute sulphuric acid, zinc being more reactive than hydrogen displaces hydrogen atom its salt solution and lead to formation of zinc sulfate and hydrogen gas.

$Zn+H_2SO_4(aq)\rightarrow ZnSO_4(aq)+H_2(g)$

Thus hydrogen gas is produced.