AIPMT 2008 Main Mock Test

Equal volumes of three acid solutions of $\text{pH}$ $3$, $4$ and $5$ are mixed in a vessel. What will be the ${\text{H}}^{+}$ ion concentration in the mixture?

For the reactions $X\rightleftharpoons 2Y$ and $A\rightleftharpoons 2B$, the equilibrium constants are $K_{p1}$ and $K_{p2}$ in the ratio $9:1$. If degree of dissociation is equal, the ratio of total pressures is:

If the concentration of ${\text{OH}}^{-}$ ions in the reaction ${\text{Fe(OH)}}_3(s)\rightleftharpoons {\text{Fe}}^{3+}(aq)+3{\text{OH}}^{-}(aq)$ is decreased by $1/4$ times, then equilibrium concentration of ${\text{Fe}}^{3+}$ will increase by:

For the gas phase reaction ${\text{PCl}}_5(g)\rightleftharpoons {\text{PCl}}_3(g)+{\text{Cl}}_2(g)$, which of the following conditions is correct?

The rate constants $k_1$ and $k_2$ for two different reactions are $10^{16}{e}^{-2000/T}$ and $10^{15}{e}^{-1000/T}$ respectively. The temperature at which $k_1=k_2$ is: