Advertisements
Advertisements
प्रश्न
Depict the galvanic cell in which the cell reaction is \[\ce{Cu + 2Ag^+ -> 2Ag + Cu^{2+}}\]
उत्तर
Anode- Oxidation half-cell: \[\ce{Cu -> Cu^{2+} + 2e-}\]
Cathode- Reduction half-cell: \[\ce{2Ag+ + 2e^{-} -> 2Ag}\]
Overall reaction: \[\ce{Cu + 2Ag+ -> Cu^{2+} + 2Ag}\]
\[\ce{Cu | Cu^{2+} (aq, 1M) || Ag^{+} (aq, 1M) | Ag}\]
APPEARS IN
संबंधित प्रश्न
Arrange the following metals in the order in which they displace each other from the solution of their salts.
\[\ce{Al, Cu, Fe, Mg}\] and \[\ce{Zn}\]
How many faradays of electricity are required to produce 6 g of Mg from MgCl2?
If 'I' stands for the distance between the electrodes and 'a' stands for the area of cross-section of the electrode, `"l"/"a"` refers to ____________.
Zinc can be coated on iron to produce galvanized iron but the reverse is not possible. It is because ____________.
Assertion: pure iron when heated in dry air is converted with a layer of rust.
Reason: Rust has the compositionFe3O4.
Can Fe3+ oxidises bromide to bromine under standard conditions?
Given: \[\ce{E^0_{{Fe^{3+}|Fe^{2+}}}}\] = 0.771 V
\[\ce{E^0_{{Br_{2}|Br^-}}}\] = −1.09 V
`E_(cell)^Θ` = 1.1V for Daniel cell. Which of the following expressions are correct description of state of equilibrium in this cell?
(i) 1.1 = `K_c`
(ii) `(2.303RT)/(2F) logK_c` = 1.1
(iii) `log K_c = 2.2/0.059`
(iv) `log K_c` = 1.1
Consider a cell given below:
\[\ce{Cu | Cu^{2+} || Cl^{-} | Cl_{2},Pt}\]
Write the reactions that occur at anode and cathode
Which of the following is incorrect?
Explain the types of electrochemical cells.
