1.The most important therapy for cholera is :

2.Among the various allotropes of carbon :

3.Three important imcronutrients essential for humans are:

4.In vulcanisation natural rubber is heated with :

5.Consider the following statements : Ammonia is :1. readily soluble in water2. used as a refrigerant3. used for preparation of polypropylene4. used as an additive in cooking gasesWhich of these statements are correct ?