<prompt> Chelating agent used in mercury poisoning is -Calcium disodium edetateDesferrioxaminePenicillamineBAL  <response>: Ans. is d i.e., BAL Use of different chelating agentsDimercaprol BALo Poisoning by As, Hg, Au, Bi, Ni, Sbo As an adjuvant to EDTA in lead poisoningo As an adjuvant to penicillamine in Cuo Contraindicated in iron and cadmium poisoning.Calcium disodium edetate Ca Na,EDTAo Lead poisoningo Also used in Zn, Cd, Mn, Cu, Fe poisoningo Mot used in mercury poisoningDesferrioxamine obtained from an actinomyceteo Acute iron poisoningo Transfusion siderosiso Available only in injectable formPenicillamineo Wilsons disease Hepatolenticular degenerationo Coppermercury poisoningo Chronic lead poisoningo Cystinuria and cystine stoneso Sclerodermao RADeferiproneo Acute iron poisoningo Iron load in liver cirrhosiso Both oral and injectable preparation available 