Dissolution of calcium oxide in water is which type of reaction?

Calcium oxide is called

Which of the following statements about the dissolution of ammonium chloride in water is (are) correct ?

Althought he dissolution of ammonium chloride in water is an endothermic reaction, even then it is spontaneous because:

Dissolution of ammonium chloride in water is an endothermic reaction, yet it is a spontaneous process. This is due to the fact that

Identify the type of reaction taking place when water is added slowly to a small amount of calcium oxide in a beaker is: (I) Exothermic reaction. (II) Endothermic reaction (III) Combination Reaction (IV)Displacement reaction

Calcium oxide can be used for drying of

Dissolution of KNO_3 in water, dissolution of CaO in water, dissolution of NaOH in water reaction of HCl, with NaOH