7.66 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.
7.66 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.
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1 Answer
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7.66
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.
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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