The standard potentials at 25ºC for the following half reactions are given against them…
Chemistry · JEE Advanced · NTA Exams — Electrochemistry
The standard potentials at 25ºC for the following half reactions are given against them
Zn2+ + 2e– \(\text { → }\) Zn, Eº = – 0.762 V
Mg2+ + 2e– \(\text { → }\) Mg, Eº = – 2.37 V
When zinc dust is added to a solution of magnesium chloride
Zn2+ + 2e– \(\text { → }\) Zn, Eº = – 0.762 V
Mg2+ + 2e– \(\text { → }\) Mg, Eº = – 2.37 V
When zinc dust is added to a solution of magnesium chloride
- No reaction will take place
- Zinc chloride is formed
- Zinc dissolves in the solution
- Magnesium is precipitated.
Answer
(A) No reaction will take place
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