Preparation of oxygen in lab: \(2KClO_3(s) \xrightarrow[\text{catalyst}]{\text{Heat}} 2KCl(s) + 3O_2(g)\). Which statement(s) is/are correct?
Decomposition reaction and endothermic in nature
Combination reaction
Decomposition reaction accompanied by release of heat
Photochemical decomposition and exothermic
It is thermal decomposition requiring heat input (endothermic).