Which reaction is NOT feasible? (A) \( 2 KI + Br _{2} \longrightarrow

1.	Which reaction is NOT feasible? (A) \( 2 KI + Br _{2} \longrightarrow 2 KBr + I _{2} \) (B) \( 2 KBr + I _{2} \longrightarrow 2 KI + Br _{2} \) (C) \( 2 KBr + Cl _{2} \longrightarrow 2 KCl + Br _{2} \) (D) \( 2 H _{2} O +2 F _{2} \longrightarrow 4 HF + O _{2} \)
Answer» Correct option is (B) 2KBr + I₂ → 2KI + Br₂ As we know the oxidizing power of halogens decrease as we move from top to bottom, it means the order of oxidizing strength will be F₂ > Cl₂ > Br₂ > I₂ ∵ Br₂ is more powerful oxidizing agent than I₂ it means I₂ can not reduce Br^- to Br₂. ∴ 2KBr + I₂ → KI + Br₂ is not a feasible reaction.

Which reaction is NOT feasible? (A) \( 2 KI + Br _{2} \longrightarrow 2 KBr + I _{2} \) (B) \( 2 KBr + I _{2} \longrightarrow 2 KI + Br _{2} \) (C) \( 2 KBr + Cl _{2} \longrightarrow 2 KCl + Br _{2} \) (D) \( 2 H _{2} O +2 F _{2} \longrightarrow 4 HF + O _{2} \)

Answer»

Correct option is (B) 2KBr + I₂ → 2KI + Br₂

As we know the oxidizing power of halogens decrease as we move from top to bottom, it means the order of oxidizing strength will be

F₂ > Cl₂ > Br₂ > I₂

∵ Br₂ is more powerful oxidizing agent than I₂ it means I₂ can not reduce Br^- to Br₂.

∴ 2KBr + I₂ → KI + Br₂ is not a feasible reaction.

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Which reaction is NOT feasible? (A) \( 2 KI + Br _{2} \longrightarrow 2 KBr + I _{2} \) (B) \( 2 KBr + I _{2} \longrightarrow 2 KI + Br _{2} \) (C) \( 2 KBr + Cl _{2} \longrightarrow 2 KCl + Br _{2} \) (D) \( 2 H _{2} O +2 F _{2} \longrightarrow 4 HF + O _{2} \)

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