Statement I says that diuresis is advised for purgation and vomiting, which is incorrect.
Diuresis refers to increased urine production and is used to remove excess fluid from the body, but it is not a treatment for purgation or vomiting.
Purgation is related to bowel evacuation, and vomiting is expelling stomach contents — these do not require diuretics.
Statement II says that diuretics are given in cardio pulmonary diseases, which is correct.
In conditions like congestive heart failure and pulmonary edema, diuretics help remove excess fluid to reduce the workload on the heart and lungs.
Therefore, only Statement II is correct.