1.

What happens when chlorine gas is passed through a hot concentrated solution of NaOH ?

Answer»

Solution :On TREATMENT with hot concentrated NaOH, `Cl_(2)` undergoes DISPROPORTIONATION to form sodium chloride and sodium chlorate.
`3 overset(0)(Cl_(2)) (g) + 3NaOH (aq) overset("Hot")rarr 5 Naoverset(-1)(CL) (aq) + underset("Sod. chlorate")(Naoverset(+5)(ClO)_(3))(aq)+3H_(2)O (L)`


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