Question & Answer: Which of the following is the weakest oxidizing agent? A) Fe^2+(aq) B) Cr^3+(aq) C) Sn^4+…..

27. Which of the following is the weakest oxidizing agent? A) Fe2t(ag) B) Cr3+(ag) C) Sn4t(ag) D) K+(s) E) Cut(s) hich of the following pairs of reactants will result in a spontaneous reaction at 25 C. 28. Determine w A) Pb2+(aq)+ Au(s) C) Nat(a) + Al(s) E) None of the above pairs will react. B) Agt(aq) + Br (aq) D) Fe3+(aq) + Al(s)

Which of the following is the weakest oxidizing agent? A) Fe^2+(aq) B) Cr^3+(aq) C) Sn^4+(aq) D) K^+(s) E) Cu^+(s) Determine which of the following pairs of reactants will result in a spontaneous reaction at 25 degree C. A) Pb^2+(aq) + Au(s) B) Ag^+(aq) + Br^-(aq) C) Na^+(aq) + Al(s) D) Fe^3+(aq) + Al(s) E) None of the above pairs will react.

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Expert Answer

Answer

1.The weakest reducing agent among the given options in K⁺ at it is one of the best reducing agents available.
The standard Reduction potential of K⁺ is negative (also more negative than all the other counterparts) making it the weakest oxidising agent among all.
2. Possible reactions are :

Reaction of Silver and Bromide ion. They precipitate readily giving AgBr at room temperature.
Al will replace Fe³⁺ from its aqueous solution because it is placed higher in the activity series.

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