Manu was heating oil to fry potato chips. The cooking oil, all of a sudden, caught fire; he poured water to extinguish the fire. Do you think this action was suitable? If yes, why? If not, why not? In such a condition what should Manu have done?

No, the step taken by Manu to extinguish fire from oil is not suitable. Because along with water oil also spread which will increase the flame.

Steps that should have been taken by Manu

Manu should have put the flame of the burner off and put a lid on a frying pan. This cuts the contact between flame and oxygen and the flame will be gradually extinguished