The correct group of halide ions which can be oxidised by oxygen in acidic medium is (A) I– only (B) — JEE Mains Chemistry Past Papers Chemistry Question
Question
The correct group of halide ions which can be oxidised by oxygen in acidic medium is (A) I– only (B) Br– and I– only (C) Cl–, Br– and I– only (D) Br– only
Answer: A
💡 Solution & Explanation
Reduction potential V . Eo I/ I – V . Eo Br / Br – V . Eo O H / O 2 V . Eo Cl / Cl – R.P. is in order Cl2 > Br2 > I2 O.P. is revers in order So, I– and Br– ion will get oxidised.
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