🏫 Board🧪 Chemistry

Which of the following pair of ions are coloured?

Q1 FREE PREVIEW

\({\mathrm{Ti}}^{4+},{\mathrm{V}}^{3+}\)

\({\mathrm{Cr}}^{2+},{\mathrm{Cu}}^{2+}\)

\({\mathrm{Cr}}^{3+},{\mathrm{Ni}}^{2+}\)

\({\mathrm{Mn}}^{3+},{\mathrm{Ni}}^{2+}\)

✓ Correct answer: b)

\({\mathrm{Cr}}^{2+},{\mathrm{Cu}}^{2+}\)

Explanation

\({\mathrm{Cr}}^{2+},{\mathrm{Cu}}^{2+},\)both are blue in colour.

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