Questions
Which set has all the coloured ions?
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By Expert Faculty of Sri Chaitanya
a
Cu+,Cu2+,Ni2+
b
Cu2+,Fe2+,Co2+
c
Cu2+,Co2+,Sc3+
d
Na+,Mg2+,Al3+
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Correct option is B
Cu+ is colourless and Sc3+ is colourless.Na+,Mg2+,Al3+--colourlessas they have no unpaired electron in d-orbitals.Similar Questions
The ionic mobility of alkali metal ions in aqueous solution is maximum for
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