Match List-$I$ with List-$II$:
List-$I$ (Applications) List-$II$ (Batteries/Cell) $A$. Transistors $I$. Anode $- Zn/Hg$; Cathode $- HgO + C$ $B$. Hearing aids $II$. Hydrogen fuel cell $C$. Inverters $III$. Anode $- Zn$; Cathode $- Carbon$ $D$. Apollo space ship $IV$. Anode $- Pb$; Cathode $- PbO_2$
Choose the correct answer from the options given below:
| List-$I$ (Applications) | List-$II$ (Batteries/Cell) |
|---|---|
| $A$. Transistors | $I$. Anode $- Zn/Hg$; Cathode $- HgO + C$ |
| $B$. Hearing aids | $II$. Hydrogen fuel cell |
| $C$. Inverters | $III$. Anode $- Zn$; Cathode $- Carbon$ |
| $D$. Apollo space ship | $IV$. Anode $- Pb$; Cathode $- PbO_2$ |
Choose the correct answer from the options given below:
- A$A-III, B-I, C-IV, D-II$
- B$A-III, B-II, C-IV, D-I$
- C$A-IV, B-III, C-II, D-I$
- D$A-II, B-III, C-IV, D-I$
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Similar Questions
The minimum voltage (in $V$) required to bring about the electrolysis of $1 \ M$ copper$(II)$ sulphate solution at $298 \ K$ is (Given $E^{\circ}_{Cu^{2+}/Cu} = 0.34 \ V$ and $E^{\circ}_{O_2/H_2O} = 1.23 \ V$)
The zinc/silver oxide cell is used in electric watches. The reaction is as follows:
$Zn(s) + Ag_2O(s) + H_2O(l) \rightarrow Zn^{2+}(aq) + 2Ag(s) + 2OH^-(aq)$
Given:
$Zn^{2+} + 2e^- \rightarrow Zn ; E^{\circ} = -0.760 \, V$
$Ag_2O + H_2O + 2e^- \rightarrow 2Ag + 2OH^- ; E^{\circ} = 0.344 \, V$
If $F = 96,500 \, C \, mol^{-1}$,the $\Delta G^{\circ}$ of the cell will be $....$ (in $kJ \, mol^{-1}$)
$Zn(s) + Ag_2O(s) + H_2O(l) \rightarrow Zn^{2+}(aq) + 2Ag(s) + 2OH^-(aq)$
Given:
$Zn^{2+} + 2e^- \rightarrow Zn ; E^{\circ} = -0.760 \, V$
$Ag_2O + H_2O + 2e^- \rightarrow 2Ag + 2OH^- ; E^{\circ} = 0.344 \, V$
If $F = 96,500 \, C \, mol^{-1}$,the $\Delta G^{\circ}$ of the cell will be $....$ (in $kJ \, mol^{-1}$)
The following limiting molar conductivities are given as:
$\lambda_{m(H_{2}SO_{4})}^{0} = x \ S \ cm^{2} mol^{-1}$
$\lambda_{m(K_{2}SO_{4})}^{0} = y \ S \ cm^{2} mol^{-1}$
$\lambda_{m(CH_{3}COOK)}^{0} = z \ S \ cm^{2} mol^{-1}$
The $\lambda_{m}^{0} \ (\text{in } S \ cm^{2} mol^{-1})$ for $CH_{3}COOH$ will be:
$\lambda_{m(H_{2}SO_{4})}^{0} = x \ S \ cm^{2} mol^{-1}$
$\lambda_{m(K_{2}SO_{4})}^{0} = y \ S \ cm^{2} mol^{-1}$
$\lambda_{m(CH_{3}COOK)}^{0} = z \ S \ cm^{2} mol^{-1}$
The $\lambda_{m}^{0} \ (\text{in } S \ cm^{2} mol^{-1})$ for $CH_{3}COOH$ will be:
An electrochemical cell is set up as follows: $Pt(H_2, 1 \, atm) | 0.1 \, M \, HCl || 0.1 \, M \, CH_3COOH | (H_2, 1 \, atm) Pt$. The $E.M.F.$ of this cell will not be zero because:
MediumAIPMT 1995
View SolutionWhich of the following statements is incorrect?
Medium
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