NEET UG CHEMISTRY MCQ: ELECTRO CHEMISTRY

1 Hard

1 of 1

Analyzing +4 | -1

Assertion : For the Daniel cell,

{Zn} \mid {Zn}^{2+} \| {Cu}^{2+} {Cu}

with,

E_{\text {cell }}=1.1 {~V}

, the application of opposite potential greater than 1.1

V

results into flow of electron from cathode to anode.

Reason :

{Zn}

is deposited at anode and

{Cu}

is deposited at cathode.

View answer and explanation

Correct option: A

If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

Option A is correct because when an opposite potential greater than 1.1V is applied, the electron flow reverses, and Zn is deposited at the anode and Cu at the cathode, which is the reverse of the spontaneous reaction.

More Questions from ELECTRO CHEMISTRY

Practice All Chapter MCQs →

4.5 g of Al (at. mass 27 amu) is deposited at cathode from

A{l^{3 + }}

solution by a certain quantity of charge. The volume of

{H_2}

produced at STP from

{H^ + }

ions in solution by the same quantity of charge will be : The correct order of molar conductivity at infinite dilution of

\mathrm{LiCl},{\rm{NaCl {\kern 1pt}{\kern 1pt}and {\kern 1pt}{\kern 1pt}KCl}}

is A solution of copper sulphate

\left(\mathrm{CuSO}_4\right)

is electrolysed for 10 minutes with a current of 1.5 amperes. The mass of copper deposited at the cathode (at. mass of Cu = 63 u) is The desired amount of charge for obtaining one mole of Al from

\mathrm{A}{\mathrm{l}^{3 + }}

is When an aqueous solution of lithium chloride is electrolysed using graphite electrodes : Which are used as secondary reference electrodes?