Is Ca(CIO3)2 = CaCl2 + 30, a redox reaction or not?

A redox reaction occurs

Given

Reaction

Ca(ClO3)2 → CaCl2 + 3O2

Required

Type of reaction

Solution

The reaction equation is said to be a redox reaction if there is an oxidation reaction (increase in oxidation number) and a reduction reaction (decrease in oxidation number)

Oxidation number of Cl in Ca(ClO3)2 :+5

Oxidation number of Cl in CaCl2 = -1

Reduction : +5 to -1

O in Ca(ClO3)2 : -2

O in O2 : 0

Oxidation : -2 to 0

So there is a reduction and oxidation reaction

i believe it is c.) 1575 j.

the answer would be c