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On adding a solution of (A) into the solution of cupric chloride, a white precipitate is first formed which dis- solves on adding excess of (A) forming a compound (E). Identify (A) to (E) and give chemical equations for the reactions at steps (i) to (iv). |
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Answer» `2Cu^(2+)+underset("white ppt.")(3S_(2)O_(3)^(2-) rarr) Cu_(2)S_(2)O_(3) darr +S_(4)O_(6)^(2-)` `underset("White ppt.")(3Cu_(2)S_(2)O_(3)) darr +underset("(excess)")(2Na_(2)S_(2)O_(3)) rarr underset("(E) soluble complex")(Na_(4)[Cu_(6)(S_(2)O_(3))_(5)])` |
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