Question

What happen when chlorine gas is passed through a hot concentrated solution of naoh?

Answer 1

The reaction between chlorine and cold dilute sodium hydroxide solution is: NaClO3 is sodium chlorate(I). ... Chlorinereact with sodium hydroxide to produce sodium chlorate, sodium chloride and water. The reaction takes place in aconcentrated solution heating the reaction mixture.

Answer 2

Answer: The reaction between chlorine gas and hot, concentrated NaOH solution yields Sodium chloride and sodium chlorate(V).

Explanation:

The reaction between chlorine gas and hot, concentrated solution of NaOH follows the equation:

$3Cl_2(g)+6NaOH(aq.)\rightarrow 5NaCl(aq.)+NaOCl_3(aq.)+3H_2O(l)$

This is a type of disproportionation reaction where, chlorine is getting reduced as well as oxidized.

By Stoichiometry,

3 moles of chlorine gas reacts with 6 moles of sodium hydroxide solution to form 5 moles of sodium chloride, 1 mole of sodium chlorate (V) and 3 moles of water.

Hence, the reaction between chlorine gas and hot, concentrated NaOH solution yields Sodium chloride and sodium chlorate(V).