(A) Difluoro Dichloro Methane
(B) Calcium Tetrafluoride
(C) Hydrofluosilicic Acid
(D) Fluorspar and Felspar
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(A) Difluoro Dichloro Methane
(B) Calcium Tetrafluoride
(C) Hydrofluosilicic Acid
(D) Fluorspar and Felspar