List of top Chemistry Questions on Electrochemistry asked in GUJCET

Calculate the equilibrium constant of the following reaction:
\[ \mathrm{Cu_{(s)} + 2Ag^+_{(aq)} \rightarrow Cu^{2+}_{(aq)} + 2Ag_{(s)}}, \qquad E^\circ_{\text{cell}} = 0.46\,V \]

How much electricity in terms of Faraday is required to produce \(40.0\) g of Al from molten \( \mathrm{Al_2O_3} \)?

Which of the following statement is not true for fuel cell?

Which of the following metal behaves as weakest reducing agent?

Kemi samagri ni enthalpy ma kyare badi badlavi aave che?

Which of the following represents the correct order of reactivity in the given nucleophilic substitution reactions? (Choose the correct option)
i) \( \text{Sodium acetate} \rightarrow \) Cyclohexane.
ii) \( \text{KCl} \rightarrow \) Cyclohexane.
iii) \( \text{CH}_3\text{OH} + \text{Cl} \rightarrow \) New compound.
iv) \( \text{CH}_3\text{CN} \rightarrow \) Cyclohexane via substitution.

Two different electrolytic cells filled with molten $Cu(NO_3)_2$ and molten $Al(N0_3)_3$ respectively are connected in series. When electricity is passed 2. 7 g Al is deposited on electrode. Calculate the weight of Cu deposited on cathode. $[Cu = 63 .5; Al= 27 .0 g mol^{-1} ]$