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Which of the following statements regarding copper salt is not true ?

$\begin {array} {1 1} (A)\;\text{Copper (I) disproportionates to Cu and Cu (II) is aqueous solution} \\ (B)\;\text{Copper (I) can be stabilized by the formation of insoluble complex compounds such $CuCl^-_2$ and $Cu(CN)^-_2$} \\ (C)\;\text{Copper (II) oxide is red powder} \\ (D)\;\text{Copper sulphate molecule is associated with five molecules of water} \end {array}$

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Answer : Copper (II) oxide is red powder
Copper (II) oxide is black powder.
answered Jul 31, 2014 by thanvigandhi_1

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