<prompt> Shortest acting local anaesthetics -LignocaineBupivacaineEtidocaineChlorprocaine  <response>: Ans. is d i.e., Chlorprocaine Local anethatics. duration of actionShort duration 30 minLow potencyIntermediate duration 30-90 minIntermediate potencyLong duration 120 min High potencyChlorprocaine shortest acting LignocaineMepivacaineBupivacaineTetracaineProcainePrilocaincCocaineEtodicaineRopivacaineDibucaine longest acting 