If chlorine gas is passed through hot NaOH solution, two changes are observed in the oxidation number of chlorine during the reaction. These are ________ and _________.

Question

Philoid · Accepted Answer

6NaOH + 3Cl₂ 5NaCl + NaClO₃ +H₂O

Let x be the oxidation state of chlorine.

Oxidation state of Cl is -1 ( x + 1 =0, x= -1)

Oxidation state of chlorine in NaClO₃ is +5 ( x + 3*(-2) +1 = 0, x= 5)

Hence the correct options are (i) and (iii)