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Which of the following statements is/are true ?A. `Cu^(2+)` salts form soluble complex with excess KCNB. `Cu^(2+)` salts form soluble complex with aqueous ammoniaC. `Cu^(2+)` salts form soluble complex with KID. A piece of iron or zinc when place in `Cu^(2+)` salt solution, precipitates copper |
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Answer» Correct Answer - A,B,D (C ) is incorrect as with KI, `Cu^(2+)` salts form a white precipitate of `Cu_2I_2 and I_2` gas is liberated. |
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