Chemistry, asked by vishakha995791, 11 months ago

0. The standard potential at 25°C for the following half reactions is given ::
Zn2+ + 22 Zn;E°=-0.762 V
Mg2+ + 22-Mg; E°=-2.37 V
When Zinc dust is added to the solution of MgCl2..
(a) Znal, is formed
(b) Mg is precipitated
(c) Zn dissolved in the solution
(d) No reaction takes place

Answers

Answered by parastyagi

Answer:

Zn. dissolved in solution

vishakha995791: why can't it be option no. d?

parastyagi: because low reduces high

vishakha995791: ??

Answered by Gauravsamaik5489

Answer: no rexn will take place

Explanation: on finding E°cell comes to be

-ve. And deltaG°=-nfE°cell. As Ecell comes to be -ve Delta G becomes +ve and deltaG+ve is criteria for non spontaneous rexn thats why no rexn witt take place

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0. The standard potential at 25°C for the following half reactions is given ::Zn2+ + 22 Zn;E°=-0.762 VMg2+ + 22-Mg; E°=-2.37 VWhen Zinc dust is added to the solution of MgCl2..(a) Znal, is formed(b) Mg is precipitated(c) Zn dissolved in the solution(d) No reaction takes place​

Answers

0. The standard potential at 25°C for the following half reactions is given ::
Zn2+ + 22 Zn;E°=-0.762 V
Mg2+ + 22-Mg; E°=-2.37 V
When Zinc dust is added to the solution of MgCl2..
(a) Znal, is formed
(b) Mg is precipitated
(c) Zn dissolved in the solution
(d) No reaction takes place