Question

Reaction between barium chloride and sodium sulphate solution is a

• A. precipitation reaction
• B. neutralisation reaction
• C. substitution reaction
• D. combination reaction

Answer 1

The correct option is A

precipitation reaction

• Double displacement reaction occurs when Sodium sulphate ( Na₂SO₄) and Barium chloride (BaCl₂) react with each other.
• It is a precipitation reaction as the precipitates of insoluble Barium sulphate are formed.
• $$\begin{gathered} {\mathrm{Na}}_2{\mathrm{SO}}_4\left(\mathrm{aq}\right)+{\mathrm{BaCl}}_2\left(\mathrm{aq}\right)\to {\mathrm{BaSO}}_4\left(\mathrm{s}\right)+2\mathrm{NaCl}\left(\mathrm{aq}\right) \\ (\mathrm{Sodium}\mathrm{sulphate})(\mathrm{Barium}\mathrm{chloride})(\mathrm{Barium}\mathrm{sulphate})(\mathrm{Sodium}\mathrm{chloride}) \end{gathered}$$

Therefore, option (a) is correct.