7.32 Write balanced equations for the following:

(i) NaCl is heated with sulphuric acid in the presence of MnO2.

(ii) Chlorine gas is passed into a solution of NaI in water.

(i) 4NaCl + MnO+ 4H2SO→ MnCl+ 4NaHSO4 + 2H2O + Cl2

(ii) Cl+ NaI→2NaCl + I2