Which of the following transformations can be carried out by using HI

1.	Which of the following transformations can be carried out by using HI as a rducing agent, under acidic conditions ? [Given : I2 (s) → 2I– Eθ = 0.54 V] (i) Cu+ → Cu(s) Eθ = 0.52 V (ii) Cr3+ → Cr2+ Eθ = – 0.41 V (iii) Fe3+ → Fe2+ Eθ = 0.77 V (iv) Fe2+ → Fe(s) Eθ = – 0.44 V (A) (i) and (iii) (B) (ii) and (iv) (C) only (iii) (D) only (ii)
Answer» Correct Option :- (C) only (iii) Explanation :- Fe⁺³ → Fe⁺² is having maximum SRP value.

Which of the following transformations can be carried out by using HI as a rducing agent, under acidic conditions ? [Given : I2 (s) → 2I– Eθ = 0.54 V] (i) Cu+ → Cu(s) Eθ = 0.52 V (ii) Cr3+ → Cr2+ Eθ = – 0.41 V (iii) Fe3+ → Fe2+ Eθ = 0.77 V (iv) Fe2+ → Fe(s) Eθ = – 0.44 V (A) (i) and (iii) (B) (ii) and (iv) (C) only (iii) (D) only (ii)

Answer»

Correct Option :- (C) only (iii)

Explanation :-

Fe⁺³ → Fe⁺² is having maximum SRP value.

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