Question

(d) Which of the following statements is correct about the above reaction based on your
observations?
I. It is an endothermic reaction.
II. It is an exothermic reaction
III. The pH of the resulting solution will be more than seven.
IV. The pH of the resulting solution will be less than seven
(i) I and II
(ii) II and III
(iii) I and IV
(iv) III and IV​

Answer 1

Answer. (b)

Explanation:  The formation of calcium hydroxide from calcium oxide and water with heat so it is an exothermic reaction. Calcium hydroxide is a basic compound so pH will be more than 7.