How is chlorine prepared in the laboratory ? How does it react with the following ?
`Na_(2)S_(2)O_(3)`

Explanation

Chlonne is prepared in the laboratory-by heating concentrated Hydrochloric acid with Manganese dioxide, `Mn0_(2) + 4HCI rarr MnCI_(2) + CI_(2) + 2H_(2)O`
It can also be prepared by heating a mixture of sodium chloride and concentrated `H_(2)S0_(4)` .
`4NaCI + Mn0_(2) + 4H_(2)S0_(4) rarr MnCI_(2) + 4NaHS0_(4) + 2H_(2)0 + CI_(2)`
Reactions:
Hypo reacts with `CI_(2)` to form HCI and precipitates sulphur. `Na_(2)S_(2)0_(3) + CI_(2) + H_(2)0 rarr Na_(2)S0_(4) + 2HCI + Si`