<prompt> All are alkylating agents, except5-FluorouracilMelphalanCyclophosphamideChlorambucil  <response>: Ans. A 5-FluorouracilRef: Katzung 11the p945, KDT 8the p918-9195-Fluorouracil is an antimetabolite whereas melphalan, cyclophosphamide and chlorambucil are alkylating agents. 