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Consider two statements. Statement I: Fe(III), acidified K2Cr2O7 and neutral KMnO4 can each independently oxidise I- to I2. Statement II: The manganate ion is paramagnetic and involves p(pi)-p(pi) bonding. Choose the correct option.

1. Both Statement I and Statement II are true
2. Both Statement I and Statement II are false
3. Statement I is true but Statement II is false
4. Statement I is false but Statement II is true

Correct answer: Statement I is true but Statement II is false

Solution

All three reagents oxidise iodide to iodine, so Statement I is true; manganate is paramagnetic but its pi bonding involves d-p (not p-p) overlap, so Statement II is false.

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