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Question
Which of the following pairs has the same ionic size?
Options
Fe2+, 1Ni2+
Zr4+, Ti2+
Zr4+, HF4+
Zn2+, Hf4+
MCQ
Solution
Zr4+, HF4+
Explanation:
Group 4 contains HF4+ and Zr4+ (d block). These have the same sizes due to Lanthanide contraction.
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