Question

Solid calcium oxide reacts vigorously with water to form calcium hydroxide accompanied by

liberation of heat. This process is called slaking of lime. Calcium hydroxide dissolves in water to

form its solution called lime water. Which among the following is (are) true about slaking of

lime and the solution formed?

(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

(a) (i) and (ii) (b) (ii) and (iii)

(c) (i) and (iv) (d) (iii) and (iv)​

Answer 1

Answer

CaO+H2O=>Ca(OH)2+heat....

So, you answer will be Option b.........

#hope you like it✌

Answer 2

Answer:

Option B

Explanation:

Since we know by question Calcium hydroxide reacts vigorously so it is an exothermic reaction.

And $Ca(OH)_2$ ...

Since we $OH^{-}$ are alkalies, so the pH scale it will go above seven