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Class 10 - Science - CHAPTER 1: Chemical Reactions and Equations - Multiple Choice QuestionsQuestion 4
Class 10 - Science - CHAPTER 1: Chemical Reactions and Equations - Multiple Choice Questions
Question. 4
Which of the following are exothermic processes?
(i) Reaction of water with quick lime
(ii) Dilution of an acid
(iii) Evaporation of water
(iv) Sublimation of camphor (crystals)
(a)
(i) and (ii)
(b)
(ii) and (iii)
(c)
(i) and (iv)
(d)
(iii) and (iv)
Detailed Answer with Explanation:
Reaction of water with quick lime and dilution of acid are exothermic processes. The others absorb heat (endothermic).