Bleaching powder on treatment with x gives O2 , with Y gives Cl2 and with Z gives Chloroform. X, Y and Z are respectively
1. H2 SO4 ,CoCl2 and Ethyl alcohol
2. CoCl2 H2 SO4 and ethyl alcohol
3. CoCl2 H2 SO4 and methyl alcohol
4. Etheyl alcohol, CoCl2 H2 SO4
