Double salts are addition compounds which lose their identity in aqueous solution whereas complexes which are also addition compounds do not lose their identity in aqueous solution. The coordination compounds show isomerism and find applications in photography, qualitative analysis, metallurgy, water purification and in the treatment of various diseases . Which of the following statment is incorrect ?A. Alum is a double saltB. EDTA salt of calcium is used in the treatment of lead poisoning.C. Effective atomic number of the metal in complexes `[Ni(CO)_(4)] and [Fe(CN)_(6)]^(4-)` is same.D. Chloridotris (triphenylphosphine) rhodium (I) is effective heterogeneous catalyst for hydrogenation of alkenes.

Double salts are addition compounds which lose their identity in aqueo

1.	Double salts are addition compounds which lose their identity in aqueous solution whereas complexes which are also addition compounds do not lose their identity in aqueous solution. The coordination compounds show isomerism and find applications in photography, qualitative analysis, metallurgy, water purification and in the treatment of various diseases . Which of the following statment is incorrect ?A. Alum is a double saltB. EDTA salt of calcium is used in the treatment of lead poisoning.C. Effective atomic number of the metal in complexes `[Ni(CO)_(4)] and [Fe(CN)_(6)]^(4-)` is same.D. Chloridotris (triphenylphosphine) rhodium (I) is effective heterogeneous catalyst for hydrogenation of alkenes.
Answer» Correct Answer - D It is homogeneous catalyst for hydrogenation of alkenes.

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