275754 The $\left(\frac{\partial E}{\partial T}\right)_{P}$ of different types of half cells are as follows:
$\begin{array}{cccc}\text { A } & \text { B } & \text { C } & \text { D } \\ 1 \times 10^{-4} & \mathbf{2 \times 1 0 ^ { - 4 }} & 0.1 \times 10^{-4} & 0.2 \times 10^{-4}\end{array}$
(Where $E$ is the electromotive force)
Which of the above half cells would be preferred to be used as reference electrode?

275755 In Fuel cells ____ are used as catalysts.

275771 Consider the following electrodes
$\begin{array}{ll}\mathbf{P}=\mathbf{Z n}^{2+}(\mathbf{0 . 0 0 0 1} \mathbf{M}) / \mathbf{Z n} & \mathbf{Q}=\mathbf{Z n}^{2+}(0.1 \mathrm{M}) / \mathbf{Z n} \\
\mathbf{R}=\mathbf{Z n}^{2+}(0.01 \mathrm{M}) / \mathbf{Z n} & \mathbf{S}=\mathbf{Z n}^{2+}(\mathbf{0 . 0 0 1} \mathbf{M}) / \mathbf{Z n}
\end{array}$
$\mathrm{E}_{\mathrm{Zn} \mid \mathrm{Zn}^{2+}}=-\mathbf{0 . 7 6 \mathrm { V }}$ Electrode potentials of the
above electrodes in volts are in the order

275795 For which of the following electrolytes the graph of $\Lambda_{\mathrm{m}}$ against $\sqrt{\mathrm{C}}$ gives a negative slope.

275754 The $\left(\frac{\partial E}{\partial T}\right)_{P}$ of different types of half cells are as follows:
$\begin{array}{cccc}\text { A } & \text { B } & \text { C } & \text { D } \\ 1 \times 10^{-4} & \mathbf{2 \times 1 0 ^ { - 4 }} & 0.1 \times 10^{-4} & 0.2 \times 10^{-4}\end{array}$
(Where $E$ is the electromotive force)
Which of the above half cells would be preferred to be used as reference electrode?

275755 In Fuel cells ____ are used as catalysts.

275771 Consider the following electrodes
$\begin{array}{ll}\mathbf{P}=\mathbf{Z n}^{2+}(\mathbf{0 . 0 0 0 1} \mathbf{M}) / \mathbf{Z n} & \mathbf{Q}=\mathbf{Z n}^{2+}(0.1 \mathrm{M}) / \mathbf{Z n} \\
\mathbf{R}=\mathbf{Z n}^{2+}(0.01 \mathrm{M}) / \mathbf{Z n} & \mathbf{S}=\mathbf{Z n}^{2+}(\mathbf{0 . 0 0 1} \mathbf{M}) / \mathbf{Z n}
\end{array}$
$\mathrm{E}_{\mathrm{Zn} \mid \mathrm{Zn}^{2+}}=-\mathbf{0 . 7 6 \mathrm { V }}$ Electrode potentials of the
above electrodes in volts are in the order

275795 For which of the following electrolytes the graph of $\Lambda_{\mathrm{m}}$ against $\sqrt{\mathrm{C}}$ gives a negative slope.

275754 The $\left(\frac{\partial E}{\partial T}\right)_{P}$ of different types of half cells are as follows:
$\begin{array}{cccc}\text { A } & \text { B } & \text { C } & \text { D } \\ 1 \times 10^{-4} & \mathbf{2 \times 1 0 ^ { - 4 }} & 0.1 \times 10^{-4} & 0.2 \times 10^{-4}\end{array}$
(Where $E$ is the electromotive force)
Which of the above half cells would be preferred to be used as reference electrode?

275755 In Fuel cells ____ are used as catalysts.

275771 Consider the following electrodes
$\begin{array}{ll}\mathbf{P}=\mathbf{Z n}^{2+}(\mathbf{0 . 0 0 0 1} \mathbf{M}) / \mathbf{Z n} & \mathbf{Q}=\mathbf{Z n}^{2+}(0.1 \mathrm{M}) / \mathbf{Z n} \\
\mathbf{R}=\mathbf{Z n}^{2+}(0.01 \mathrm{M}) / \mathbf{Z n} & \mathbf{S}=\mathbf{Z n}^{2+}(\mathbf{0 . 0 0 1} \mathbf{M}) / \mathbf{Z n}
\end{array}$
$\mathrm{E}_{\mathrm{Zn} \mid \mathrm{Zn}^{2+}}=-\mathbf{0 . 7 6 \mathrm { V }}$ Electrode potentials of the
above electrodes in volts are in the order

275795 For which of the following electrolytes the graph of $\Lambda_{\mathrm{m}}$ against $\sqrt{\mathrm{C}}$ gives a negative slope.

275754 The $\left(\frac{\partial E}{\partial T}\right)_{P}$ of different types of half cells are as follows:
$\begin{array}{cccc}\text { A } & \text { B } & \text { C } & \text { D } \\ 1 \times 10^{-4} & \mathbf{2 \times 1 0 ^ { - 4 }} & 0.1 \times 10^{-4} & 0.2 \times 10^{-4}\end{array}$
(Where $E$ is the electromotive force)
Which of the above half cells would be preferred to be used as reference electrode?

275755 In Fuel cells ____ are used as catalysts.

275771 Consider the following electrodes
$\begin{array}{ll}\mathbf{P}=\mathbf{Z n}^{2+}(\mathbf{0 . 0 0 0 1} \mathbf{M}) / \mathbf{Z n} & \mathbf{Q}=\mathbf{Z n}^{2+}(0.1 \mathrm{M}) / \mathbf{Z n} \\
\mathbf{R}=\mathbf{Z n}^{2+}(0.01 \mathrm{M}) / \mathbf{Z n} & \mathbf{S}=\mathbf{Z n}^{2+}(\mathbf{0 . 0 0 1} \mathbf{M}) / \mathbf{Z n}
\end{array}$
$\mathrm{E}_{\mathrm{Zn} \mid \mathrm{Zn}^{2+}}=-\mathbf{0 . 7 6 \mathrm { V }}$ Electrode potentials of the
above electrodes in volts are in the order

275795 For which of the following electrolytes the graph of $\Lambda_{\mathrm{m}}$ against $\sqrt{\mathrm{C}}$ gives a negative slope.