Which of the following graph(s) is/are correct? ($P_{\text{gas}}$ vs $X_{\text{solvent}}$ is plotted) .

Given below are two statements. Statement I: All the pairs of molecules $(PbO,PbO_{2})$; $(SnO,SnO_{2})$ and $(GeO,GeO_{2})$ contain amphoteric oxides. Statement II: $AlCl_{3}$, $BH_{3}$, $BeH_{2}$ and $NO_{2}$ all have incomplete octet.

Consider a first order reaction: $A\to \text{products}$ . 3 different solutions are taken rate of reaction : Solution 1: $100mL~10M~'A' - r_{1}$ ; Solution 2: $200mL~10M~'A' - r_{2}$ ; Solution 3: $100mL~10M~'A' + 100ml~\text{water} - r_{3}$ . The correct order of the rates of reactions is :

Given below are two statements . Statement-1: $HX$ bond length is higher in $HCl$ than $HF$ . Statement-2: The lowest boiling point in hydride of group 15 element is having covalency 4 .

Match the following and choose the correct option : \begin{tabular}{|l|l|} \hline List-1 & List-II \\ \hline (A) $[Ag(NH_{3})_{2}]^{+}$ & (i) Fehling's solution \\ \hline (B) $Zn-Hg/HCl$ & (ii) Clemmenson's reduction \\ \hline (C) $NH_{2}-NH_{2}/KOH$ & (iii) Tollen's reagent \\ \hline (D) $Cu^{2+}/OH^{-}$ & (iv) Wolff-Kishner reduction \\ \hline \end{tabular}