<prompt> Alkyl organophosphate isParathionFollidolDiazinonMalathion  <response>: Ans. is d i.e., Malathion Alkyl phosphatase :Malathione, HETP hexa ethyl tetra phosphate, TEPP tetra ethyl pyrophosphate or tetron, OMPA octa methyl pyrophosphate, dimefox, isopestox, demeton, trichlorfon, dipterex.Aryl phosphatase :Parathion, Follidol,or nitrostigmine or killphos or ekato, paraoxon, Diazinon diazion or TIK 20, methyl-parathion metacide, chlohion. 