How is chlorine prepared in the laboratory ? How does it react with the following ?
hot, conc. NaOH

Explanation

Chlorine, isprepared in, the laboratory by heating concentrated Hydrochloric acid with Manganese, dioxide.
`MnO_(2)+4HCI rarr MnCl_(2)+CI_(2)+2H_(2)O`
It can also be prepared by heating a mixture of sodium chloride and concentrated `H_(2)S0_(4)` .
Reactions: (a) With cold dilute NaOH, chloride and hypochlorites re formed.
`2NaOH + Cl_(2)overset(Cold )rarr NaCl + NaOCl + H_(2)O`
( b)When `Cl_(2)` is passed-thrpugh hot cone. NaOH sodium chlorate is formed. - `6NaOH + 3Cl_(2) rarr 5NaCl+ NaClo_(3) + 3H_(2)0`