Shoest acting nondepolarising muscle relaxant: (A) Succinylcholine, (B) Mivacurium, (C) Atracurium, (D) Vecuronium
Answer is B. Suxamethonium (succinylcholine) is the shoest acting skeletal muscle relaxantMivacurium is the shoest acting nondepolarizing skeletal muscle relaxant(Refer: Morgan and Mikhail's Clinical Anaesthesiology, 5th edition, pg no.214,218,219 )