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To a Concentrated Buffer of PH 4

Question 58

Multiple Choice

To a concentrated buffer of pH 4.0 is added an equal volume of an aqueous solution that is 0.020 M in Cr3+,Cd2+ and Al3+.The expected precipitate would consist of ________.
To a concentrated buffer of pH 4.0 is added an equal volume of an aqueous solution that is 0.020 M in Cr<sup>3+</sup>,Cd<sup>2+</sup> and Al<sup>3+</sup>.The expected precipitate would consist of ________. A) Al(OH) <sub>3 </sub> B) Al(OH) <sub>3</sub> and Cr(OH) <sub>3 </sub> C) Cd(OH) <sub>2 </sub> D) Cd(OH) <sub>2</sub> and Cr(OH) <sub>3 </sub> E) Cd(OH) <sub>2</sub>,Cr(OH) <sub>3</sub> and Al(OH) <sub>3 </sub>


A) Al(OH) 3
B) Al(OH) 3 and Cr(OH) 3
C) Cd(OH) 2
D) Cd(OH) 2 and Cr(OH) 3
E) Cd(OH) 2,Cr(OH) 3 and Al(OH) 3

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