1.

An easy way of obtaining Cl2 gas in the laboratory is    1. By heating NaCl and conc.  H2 SO4   2. By heating NaCl and   MnO2      3. By mixing HCl and   KMnO4   4. By passing   F2 through NaCl solution  

Answer»

3. By mixing HCl and   KMnO4



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