This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Local and Regional Anesthesia), Subject name: Anaesthesia
Shortest acting local anaesthetics - 
Select and explain. 
A. Lignocaine, B. Bupivacaine, C. Etidocaine, D. Chlorprocaine
D: Chlorprocaine
Answer: D: Chlorprocaine 
Explanation: Ans. is 'd' i.e., Chlorprocaine Local anethatics. duration of actionShort duration(< 30 min)Low potencyIntermediate duration (30-90 min)Intermediate potencyLong duration (> 120 min) High potencyChlorprocaine (shortest acting) LignocaineMepivacaineBupivacaineTetracaineProcainePrilocaincCocaineEtodicaineRopivacaineDibucaine (longest acting)