Question

Analyse the given reactions and identify A and B.​

• Sulphuric acid reacts with copper hydroxide to give A.
• Sulphuric acid reacts with caustic acid to give B.​

Answer 1

• Sulphuric acid reacts with copper hydroxide to give copper sulphate commonly known as blue vitriol.​ So, A is blue vitriol.

$H_{2}S{O}_4\left(aq\right)+Cu\left(OH{)}_2\right(s)\to CuS{O}_4(s)+2H_{2}O(l)$

• Sodium hydroxide reacts with sulphuric acid to give Glauber’s salt.​ So, B is Glauber's salt.

$H_{2}S{O}_4\left(aq\right)+2NaOH\left(aq\right)\to N{a}_{2}S{O}_4\left(s\right)+2H_{2}O\left(l\right)$