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QUESTION
(A) CrO2Cl2 (B) HNO2 (C) PH4. 19. In which of the following compounds does the underlined element have an oxidation number of +2?
(A) CrO2Cl2 (B) HNO2 (C) PH4. 19. In which of the following compounds does the underlined element have an oxidation number of +2?
