What is the change in hybridization of oxygen atom associated with carbon in the zone of reduction?
It changes from sp to sp2
‘O’ in ‘CO’ is ‘sp’ hybridized because one of the lone pairs in oxygen is donated to carbon whereas in CO2 both the lone pairs on oxygen remain intact without participating in bonding thus ‘O’ in ′CO′2 are sp2 hybridized.
Fe2O3+3CO→2Fe+3CO2