CUET · CHEMISTRY · PYQ PAPER 2025
Predict which of the following will be colored in its aqueous solution?
- A \(Ti ^{4+}\)
- B \(Sc ^{3+}\)
- C \(Mn ^{2+}\)
- D \(Zn ^{ 2 + }\)
Answer & Solution
Correct Answer
(C) \(Mn ^{2+}\)
Step-by-step Solution
Detailed explanation
\(Ti^{4+}\): [Ar] 3d^0 \(Sc^{3+}\): [Ar] 3d^0 \(Mn^{2+}\): [Ar] 3d^5 \(Zn^{2+}\): [Ar] 3d^{10} The ion with partially filled d-subshell is \(Mn^{2+}\).
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