alleryWhich halogen liberates Cl₂ from solution of Cl⁻?
AI₂
BBr₂
CF₂ (F₂ + 2Cl⁻ → 2F⁻ + Cl₂; F₂ is stronger oxidizer)
DNone
Answer & Solution
Correct answer: C. F₂ (F₂ + 2Cl⁻ → 2F⁻ + Cl₂; F₂ is stronger oxidizer)
Higher halogen (more reactive) displaces lower halogen from its salt.
**Order of oxidizing strength:** F₂ > Cl₂ > Br₂ > I₂.
So F₂ displaces Cl⁻; Cl₂ displaces Br⁻ and I⁻
etc. Iodine cannot displace any other halide ion.
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