MCQ
Identify $'A'$
- A

- B

- ✓

- D






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End product $(X)$ of the above reaction is
$\begin{array}{|l|l|} \hline Product & Sulphide\,\,Solubility \\ \hline (I) & 1.74\,\,\times\,\,10^{-16} \\ \hline (II) & 1.2\,\,\times\,\,10^{-22} \\ \hline (III) & 8.2\,\,\times\,\,10^{-46} \\ \hline (IV) & 5.0\,\,\times\,\,10^{-34} \\ \hline \end{array}$
$(A)$ $E_a = 0$
$(B)$ $T$ $=$ $\infty $
$(C)$ $T = 0$
$(D)$ $E_a$ $=$ $\infty $
