In the reaction between Cl2 and hot conc. NaOH, which is correct:

The oxidation number of Cl 2 changes from 0 to +5 and 0 to-1

Cl 2 undergoes disproportionation

Cl 2 undergoes self or auto redox change

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In the reaction between Cl₂ and hot conc. NaOH, which is correct:

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The oxidation number of Cl₂ changes from 0 to +5 and 0 to-1

Cl₂ undergoes disproportionation

Cl₂ undergoes self or auto redox change

All of these

answer is D.

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With hot concentrated alkali solutions it forms chlorates.
6NaOH+3Cl₂→5NaCl+NaClO₃+3H₂O
0 -1 +5
Cl₂ undergoes disproportionation.

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