Question

Calcium oxide reacts vigorously with water to produce slaked lime. ​

$\mathrm{CaO}\left(s\right)+H_{2}O\left(l\right)\to \mathrm{Ca}{\left(\mathrm{OH}\right)}_2\left(\mathrm{aq}\right)$
This reaction can be classified as :​
(i) Combination reaction
(ii) Exothermic reaction​
(iii) Endothermic reaction
(iv) Oxidation reaction​
Which of the following is a correct option?​

• A. (i), (iii) and (iv)​
• B. (i) and (iii)​
• C. (iii) and (iv)​
• D. (i) and (ii)​

Answer 1

The correct option is D (i) and (ii)​

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Correct answer is option (d).