JEE Main 2025 (7 Apr, Shift 2) Chemistry Q56: Given below…

Question

Given below are two statements :
1 M aqueous solutions of each of $\mathrm{Cu(NO_3)_2}$, $\mathrm{AgNO_3}$, $\mathrm{Hg_2(NO_3)_2}$, $\mathrm{Mg(NO_3)_2}$ are electrolysed using inert electrodes. Given : $E^	heta_{Ag^+/Ag}=0.80$ V, $E^	heta_{Hg_2^{2+}/Hg}=0.79$ V, $E^	heta_{Cu^{2+}/Cu}=0.24$ V and $E^	heta_{Mg^{2+}/Mg}=-2.37$ V.
Statement (I) : With increasing voltage, the sequence of deposition of metals on the cathode will be Ag, Hg and Cu.
Statement (II) : Magnesium will not be deposited at cathode instead oxygen gas will be evolved at the cathode.
In the light of the above statements, choose the most appropriate answer from the options given below :

Accepted Answer

Option 3: Statement I is correct but Statement II is incorrect

Answer

Both Statement I and Statement II are correct

Answer

Both Statement I and Statement II are incorrect

Answer

Statement I is correct but Statement II is incorrect

Answer

Statement I is incorrect but Statement II is correct

JEE Main 7 April 2025, Shift 2, Chemistry Q56

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