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IIT JEE 2006 Paper : CHEMISTRY Section I - Multiple Choice


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Multiple choice

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Blue coloured solution of CuSO4 turns colourless on addition of excessKCN due to formation of

  Cu(CN)2

  Cu(OH)2

  [Cu(CN)4] 2−

  [Cu(CN)4] 3− after reduction of Cu 2+ by CN

  Half-n-half Clue

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