When tin is over iron, it acts as an oxidizing agent and protects iron.

The equilibrium constants of two redox reactions X and Y are 1.5 x10¹⁵ and 5.5 x 10¹⁶ . Reaction X is more spontaneous than Y.

Cu∣Cu2+∥Fe2+,Fe3+∣Pt In this cell

When KMnO4 acts as an oxidizing agent and ultimately forms MnO42–, MnO2, Mn2O3 and Mn2+, then the number of electrons transferred in each case is

Given: (i) Cu2+ + 2e- → Cu, Eo = 0.337 V

(ii) Cu2+ + e- → Cu+, Eo = 0.153 V

Electrode potential E° for the reaction Cu+ + e– → Cu will be

The standard reduction potential value of the three metallic cations X, Y and Z are 0.52, -3.03 and -1.18 V respectively. the order of reducing power of the corresponding metals is

Chlorine can not displace

Which of the following will form the cathode with respect to iron anode in an electrolyte cell - ( Eo = - 0.40 v)

Electrolytic conduction differs from metallic conduction in the fact in the case of electrolytic conduction

Cell constant is generally found by measuring the conductivity of aqueous solution of

A cell constructed by coupling copper and magnesium electrode has emf of 2.7 volts. if the standard reduction potential of copper electrode is +0.34 volts, that of magnesium electrode is

With increase in dilution the conductivity increases.

Faraday's law of electrolysis is related to

It is impossible to measure the half cell potential because

The cell constant of a conductivity cell keeps changing with the electrolytes used.

Which of the following is not correct for the dry cell?

3 Faraday's of electricity is passed through Al2O3, CuSO4 and NaCl taken in three electrolytic cells. The amount of Al,Cu and Na deposited at the cathode will be in the ratio