Question

is decomposition of caco3 a redox reaction

Answer 1

To see whether the given reaction is redox reaction or not, we have to look at the change in oxidation number of all elements taking part in reaction i.e. reactant and product both

If the oxidation number of an element increase, then it is oxidation and if it is decreased then it is reduction.

the oxidation number is above equation

1. Ca remains as +2

2. C remains as +4

3. O remains as -2

THERE IS NO CHANGE IN OXIDATION NUMBER THEREFORE IT IS NOT A REDOX REACTION