Which of the following pair (s) of ions would be expected to form precipitate when dilute solutions are mixed?A. `NH_(4)^(+),[Co(NO_(2))_(6)]^(3-)`B. `NH_(4)^(+),CO_(3)^(2-)`C. `Fe^(3+),OH^(-)`D. `Ba^(2+),SO_(4)^(2-)`

Which of the following pair (s) of ions would be expected to form prec

1.	Which of the following pair (s) of ions would be expected to form precipitate when dilute solutions are mixed?A. `NH_(4)^(+),[Co(NO_(2))_(6)]^(3-)`B. `NH_(4)^(+),CO_(3)^(2-)`C. `Fe^(3+),OH^(-)`D. `Ba^(2+),SO_(4)^(2-)`
Answer» Correct Answer - A,C,D (A)`NH_(4)^(+)+[Co(NO_(2))_(6)]^(3-)to(NH_(4))_(3)[Co(NO_(2))_(6)]darr`(yellow) (B)Ammonium and alkali metal carbonates are water soluble. ( C)`Fe^(3+)+OH^(-)toFe(OH)_(3)darr`(reddish-brown) (D)`Ba^(2+)+SO_(4)^(2-)toBaSO_(4)darr` (white)

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Which of the following pair (s) of ions would be expected to form precipitate when dilute solutions are mixed?A. `NH_(4)^(+),[Co(NO_(2))_(6)]^(3-)`B. `NH_(4)^(+),CO_(3)^(2-)`C. `Fe^(3+),OH^(-)`D. `Ba^(2+),SO_(4)^(2-)`

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