<prompt> Shorest acting beta blocker -EsmololNodalolAcebutololSotalol  <response>: Ans. is a i.e., Esmolol o Nodalol is longest acting b-blocker.o Esmolol is shortest acting b-blocker.o Acebutolol possesses all activities i.e., cardioselectivity, partial agonist activity, membrane stablizing activity and lipid insolubility. 