Cr = 24) (a) Only Zn 2+ is colourless and Ni 2+ and cr 3+ are coloured

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Of the ions Zn 2+, Ni 2+ and Cr 3+ (atomic number of Zn = 30 , Ni = 28, Cr = 24) (a) Only Zn 2+ is colourless and Ni 2+ and cr 3+ are coloured
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Nov
Of the ions Zn 2+, Ni 2+ and Cr 3+ (atomic number of Zn = 30 , Ni = 28, Cr = 24) (a) Only Zn 2+ is colourless and Ni 2+ and cr 3+ are coloured Cr = 24) (a) Only Zn 2+ is colourless and Ni 2+ and cr 3+ are coloured Ni [...]
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