A graph of volume of hydrogen released vs time for the reaction between Zinc and dilute $\mathrm{HCl}$ is given in figure. On the basis of this mark the correct statement from the following.

A gaseous compound A reacts by three independent first order processes (as shown in figure) with rate constant $2\times {10}^{-3},3\times {10}^{-3}$ and $1.93\times {10}^{-3}{\sec }^{-1}$ for products $\mathrm{B},\mathrm{C}$ and $\mathrm{D}$ respectively. If initially pure $\mathrm{A}$ was taken in a closed container with $\mathrm{P}=8$ atm, then the partial pressure of B (in atm) after$100\sec$  from start of experiment : 

Consider the reaction $\mathrm{A}⟶\mathrm{B}$, graph between half life $\left({\mathrm{t}}_{1/2}\right)$ and initial concentration (a) of the reactant is

Hence, graph between$-\frac{\mathrm{d}\left[\mathrm{A}\right]}{\mathrm{dt}}$ And time will be

For the first order decomposition of ${\mathrm{SO}}_2{\mathrm{Cl}}_2\left(\mathrm{g}\right)$,

$\left[{\mathrm{SO}}_2{\mathrm{Cl}}_2\left(\mathrm{g}\right)\to {\mathrm{SO}}_2\left(\mathrm{g}\right)+{\mathrm{Cl}}_2\left(\mathrm{g}\right)\right]$

a graph of $\log \left({\mathrm{a}}_0-\mathrm{x}\right)$ vs $\mathrm{t}$ is shown in figure. What is the rate constant $\left({\sec }^{-1}\right)$ ?

 Consider the reaction

   .

The rate constant for two parallel reactions were found to be ${10}^{-2}{\mathrm{dm}}^3{ \mathrm{mol}}^{-1}{ \mathrm{s}}^{-1}\left({\mathrm{k}}_1\right)$ and $4\times {10}^{-2}{\mathrm{dm}}^2{ \mathrm{mol}}^{-1}{ \mathrm{s}}^{-1}\left({\mathrm{k}}_2\right)$ 

If the corresponding energies of activation of the parallel reactions are $80$ and $100 \mathrm{kJ}$  respectively. What is the apparent (net) overall energy of activation of given reaction.

The following mechanism has been proposed for the exothermic catalyzed complex reaction: 

$\mathrm{A} + \mathrm{B} \stackrel{\mathrm{Has}}{\rightleftharpoons }\mathrm{IAB}\stackrel{{\mathrm{k}}_1}{ \rightleftharpoons }\mathrm{AB} +\mathrm{I}\stackrel{{\mathrm{k}}_2}{\rightleftharpoons }\mathrm{P} + \mathrm{A}$ 

If $k_1$ is much smaller than $k_2$, the most suitable qualitative plot of potential energy (P.E.) versus reaction coordinate for the above reaction.

A substance undergoes first order decomposition. The decomposition follows two parallel first order reactions as :

 ${\mathrm{K}}_1=1.26\times {10}^{-4}{\sec }^{-1}$ and ${\mathrm{K}}_2=3.8\times {10}^{-5}{\sec }^{-1}$

The percentage distribution of $\mathrm{B}$ and $\mathrm{C}$ are :