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.


1) 4NaCl + MnO2 + 4H2SO4 MnCl2 + 4NaHSO4 + 2H2O + Cl2


Manganese(IV) oxide reacts with sodium chloride and sulfuric acid to produce manganese(II) chloride, chlorine, sodium bisulfate and water.


This reaction takes place at a temperature near 100°C.


2) Cl2 + NaI 2NaCl + I2


Chlorine reacts with sodium iodide to produce sodium chloride and iodine.


Chlorine - diluted solution.


Sodium iodide - cold solution.


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