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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > 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

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 = 28) Ni 2+ and Cr 3+ (atomic number of Zn = 30 Of the ions Zn 2+