Given below are two statements :

$$ \mathrm{R}=8.314 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1} \text { and } 1 \mathrm{cal}=4.2 \mathrm{~J} $$

Statement I : When $\mathrm{Ea}=12.6 \mathrm{kcal} / \mathrm{mol}$, the room temperature rate constant is doubled by a $10^{\circ} \mathrm{C}$ increase in temperature ( 298 K to 308 K )

Statement II : For a first order reactions $\mathrm{A} \rightarrow \mathrm{B}$,

Here $[A]_0$ is the initial concentration of $A$ and $t_{1 / 2}$ is half life of reaction.

In the light of the above statements, choose the correct answer from the options given below :

$$ \text { Match List - I with List - II. } $$

Choose the correct answer from the options given below :

Find the correct statements related to group 15 hydrides.

A. Reducing nature increases from $\mathrm{NH}_3$ to $\mathrm{BiH}_3$

B. Tendency to donate lone pair of electrons decreases from $\mathrm{NH}_3$ to $\mathrm{BiH}_3$

C. The stability of hydrides decreases from $\mathrm{NH}_3$ to $\mathrm{BiH}_3$

D. HEH bond angle decreases from $\mathrm{NH}_3$ to $\mathrm{SbH}_3(\mathrm{E}=$ Elements of group 15)

Choose the correct answer from the options given below :

Given below are two statements :

Statement I : The number of pairs among $\left[\mathrm{Ti}^{4+}, \mathrm{V}^{2+}\right],\left[\mathrm{V}^{2+}, \mathrm{Mn}^{2+}\right],\left[\mathrm{Mn}^{2+}, \mathrm{Fe}^{3+}\right]$ and $\left[\mathrm{V}^{2+}, \mathrm{Cr}^{2+}\right]$ in which both ions are coloured is 3 .

Statement II : The number of pairs among $\left[\mathrm{La}^{3+}, \mathrm{Yb}^{2+}\right],\left[\mathrm{Lu}^{3+}, \mathrm{Ce}^{4+}\right]$ and $\left[\mathrm{Ac}^{3+}, \mathrm{Lr}^{3+}\right]$ ions in which both are diamagnetic is 3 .

In the light of the above statements, choose the correct from the options given below :