9. Amines — Chemistry STD 12 Science — Question

To a solution containing $0.001 M$ of $X ^{2+}$ and $0.1 M$ of $Y ^{2+}$, the metal rods $X$ and $Y$ are inserted (at $298 K$ ) and connected by a conducting wire. This resulted in dissolution of $X$. The correct combination(s) of $X$ and $Y$, respectively, is (are)

(Given: Gas constant, $R =8.314 J K ^{-1} mol ^{-1}$,

Faraday constant, $F =96500 C mol ^{-1}$ )

$(A)$ $Cd$ and $Ni$  $(B)$ $Cd$ and $Fe$  $(C)$ $Ni$ and $Pb$  $(D)$ $Ni$ and $Fe$

The limiting ionic conductivity ( $\Lambda 0$ ) values (in $mS m ^2 mol ^{-1}$ ) for different ions in aqueous solutions are given below:

For different combinations of titrates and titrants given in $List-l$, the graphs of 'conductance' versus 'volume of titrant' are given in $List-II$.

Match each entry in $List-I$ with the appropriate entry in $List-II$ and choose the correct option.

$\begin{matrix}
   O\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   ||\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   C{{H}_{3}}-C-Cl-N{{H}_{3}}  \\
\end{matrix}$ $\to $ Inter mediate $\to $ product