NCERT Exemplar Solutions
Class 10 - Science - CHAPTER 1: Chemical Reactions and Equations - Multiple Choice QuestionsQuestion 15
Class 10 - Science - CHAPTER 1: Chemical Reactions and Equations - Multiple Choice Questions
Question. 15
Preparation of oxygen in lab: \(2KClO_3(s) \xrightarrow[\text{catalyst}]{\text{Heat}} 2KCl(s) + 3O_2(g)\). Which statement(s) is/are correct?
(a)
Decomposition reaction and endothermic in nature
(b)
Combination reaction
(c)
Decomposition reaction accompanied by release of heat
(d)
Photochemical decomposition and exothermic
Detailed Answer with Explanation:
It is thermal decomposition requiring heat input (endothermic).