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Only One Option Correct Type

This section contains 11 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct

Q. 

For, Pt(H₂)/H₂O, electrode potential at 298 K and 1 bar is

For the cell reaction at 298K, Cu²⁺(aq) + 2e^- → Cu(s)

Variation of log[Cu²⁺ ] with is a straight line of intercept 0.34 V on axis .Then electrode potential of the half-cell. Cu/Cu²⁺ (0.1 M) will be   

Given, Cu²⁺ + 2e^- → Cu, E° = + 0.34V, K_sp of Cu(OH)₂ = 1.0 x 10^-19

What i s E°_red of Cu²⁺/Cu couple at pH = 12? 

EMF of the following cell is 0.67 V at 298K.

Thus, pH of the solution = 0.28 V

Given,

A³⁺ + e^-   A²⁺  , E^{0. = 1.42 V}

B⁴⁺ + 2e^-  B²⁺   , E^{0. = 0.40 V}

In the potentiometric titration of B²⁺ with A³⁺ the potential at the equivalence point is  

For the cell of 298 K,

Zn(s) + Cu²⁺ (aq)  Cu(s) + Zn²⁺ (aq) 

 
Variation of E_cell with logQ (where Q is reaction quotient ) is of the type  

 
At what value of ratio of molar  concentration of ions E_cell   would be 1.1591?      

Given, Ag⁺ + e^-  → Ag, 

Thus, E° of the following half-cell reaction at 298 K.

Ag⁺ /Ag electrode is immersed in 1.00 M KCl at 298 K. K_sp (AgCl) = 1.0 x 10^-10

Thus, EMF of the cell set up is   

For the following cell, Pt(H₂) | HCI(aq) || AgCI | Ag

E_cell = 0.2650 V at 298 K and E_cell = 0.2595 V at 308 K

Thus, heat of reaction at 298 K is

Quinhydrone electrode is an indicator electrode in contact with platinum metal and can be used in acid-base potentiometric titration

At the equivalence point, [A] = [B] and thus, EMF of the cell is dependent on pH. When NaOH is added to HCl in potentiometric titration, potentiogram is 

Potential at the equivalence point in the potentiometric titration of Fe²⁺ with MnO₄^- in acidic medium is