Question
The complex with highest magnitude of crystal field splitting energy ( _0 ) is
BITSAT
Chemistry
Coordination Compounds
2024
BITSAT 2024 (Memory Based Paper 1)
BITSAT Chemistry Question (2024) — Solution
Options
- A. [ Cr ( OH _2 )_6 ]^ 3+
- B. [ Ti ( OH _2 )_6 ]^ 3+
- C. [ Fe ( OH _2 )_6 ]^ 3+
- D. [ Mn ( OH _2 )_6 ]^ 3+
Answer
A. [ Cr ( OH _2 )_6 ]^ 3+
Step-by-step solution
smaller cations prefer coordinate bonding due to greater polarizing power. Ti ^ +3 =67 pm radius, Cr ^ 3+ =62 pm radius Mn ^ +3 =65 pm radius, Fe ^ +3 =65 pm radius So, Cr ^ 3+ has highest tendency to attract ligand.
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