Chemistry questions
29404 published questions with worked solutions.
- The oxidation potential is the tendency of an electrode to
- The standard hydrogen electrode is written in
- For the reaction Zn(s) + Cu^ 2+ → Zn^ 2+ (aq) + Cu(s), Nernst equation at 25°C is
- In a voltaic cell, at 298 K if activity of both electrolyte is unity then according to Nernst's equation
- The platinum foil in SHE is coated with platinum black because
- A cell involves the reaction Sn(s) + 2Ag^+(aq) → Sn^ 2+ (aq) + 2Ag(s). The EMF of cell will increased by
- The reduction potential of calomel decreases with
- A standard hydrogen electrode has zero electrode potential because
- The oxidation potential of hydrogen electrode at pH = 10
- For the cell Zn | Zn^ +2 || Cu^ +2 | Cu, if the concentration of Zn^ +2 and Cu^ +2 ions is doubled, the emf of the cell
- For the electrode reaction M^ n+ (aq) + ne^- → M(s), the Nernst equation is given by
- In Nernst equation the constant 0.0591 represents the value of
- The electrode whose potential is arbitrary fixed is called
- Adding powdered lead and iron to a solution that is 1 M in both Pb^ 2+ and Fe^ 2+ , would result in reaction in which
- What is potential of half cell containing zinc electrode in 0.01 M ZnSO_4? (E^ = -0.763 V)
- Among the following, the oxidation potential is maximum in case of :
- A cell is represented by the equation Cu(s) + 2Ag^+(aq) → Cu^ 2+ (aq) + 2Ag(s). The voltage of the cell will increase with the...
- The difference of potential between the electrode and its salt solution at equilibrium is called
- The reduction potential is the tendency of an electrode to
- If standard electrode potential of Cu^ 2+ / Cu is 0.34 V, then potential of Cu dipped in 0.1 M solution of CuSO_4 will be