AIEEE 2002 | Electrochemistry Question 222 | Chemistry

For the following cell with hydrogen electrodes at two different pressure p₁ and p₂. What will be the emf for the given cell :

$$\eqalign{ & Pt({H_2})|{H^ + }(aq)|Pt({H_2}) \cr & \,\,\,\,\,{p_1}\,\,\,\,\,\,\,\,\,\,\,\,\,\,1M\,\,\,\,\,\,\,\,\,\,\,\,{p_2} \cr} $$

$${{RT} \over F}{\log _e}{{{P_1}} \over {{P_2}}}$$

$${{RT} \over 2F}{\log _e}{{{P_1}} \over {{P_2}}}$$

$${{RT} \over F}{\log _e}{{{P_2}} \over {{P_1}}}$$

none of these

AIEEE 2002

MCQ (Single Correct Answer)

-1

When the sample of copper with zinc impurity is to be purified by electrolysis, the appropriate electrodes are :

cathode = pure zinc, anode = pure copper

cathode = impure sample, anode = pure copper

cathode = impure zinc, anode = impure sample

cathode = pure copper, anode = impure sample

AIEEE 2002

MCQ (Single Correct Answer)

-1

Conductivity (Seimen’s S) is directly proportional to area of the vessel and the concentration of the solution in it and is inversely proportional to the length of the vessel then, then constant of proportionality is expressed in :

Sm mol^-1

Sm² mol^-1

S^-2m² mol

S²m² mol^-2

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