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[Post New]9 Dec 2007 10:26:20 IST
    Subject: Re:which one ?
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sowjanya_reddygudipati (73)

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Olaaa!! Perrrfect answer. 11  [20 rates]
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among Ag2SO2, MgF2,CuF2, CuCl
CuF2 is coloured coz copper is in +2 oxidation state which gives the colour to compound as it has an unpaired electron
but whereas in other compounds their is no presence on any unpaired electron
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