Which one of the following metals could not b | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The standard reduction potential of $Mg^{2+}/Mg$ is $-2.37 \ V$,which is much lower than the reduction potential of water $(E^o = -0.83 \ V)$.In a

Vedclass · Accepted Answer

$Mg$

Vedclass · Answer

(B) The standard reduction potential of $Mg^{2+}/Mg$ is $-2.37 \ V$,which is much lower than the reduction potential of water $(E^o = -0.83 \ V)$.In an aqueous solution,water molecules are reduced more easily than $Mg^{2+}$ ions.Therefore,during electrolysis,$H_2$ gas is evolved at the cathode instead of $Mg$ metal.Thus,$Mg$ cannot be obtained by the electrolysis of its aqueous salt solution.

Which one of the following metals could not be obtained on electrolysis of aqueous solution of its salts?

Similar Questions

Which of the following elements is obtained industrially by the electrolysis of an aqueous solution of its compound?

The products formed when an aqueous solution of $NaBr$ is electrolysed in a cell having inert electrodes are

Which metal cannot be obtained by the electrolysis of its aqueous salt solution?

On the electrolysis of aqueous solution of sodium sulphate,at the cathode we get:

When an aqueous solution of sodium chloride is electrolysed using platinum electrodes,the ions discharged at electrodes are

Vedclass Test Series

Exam Paper Generator

Online Exam Module