List of top Questions asked in KCET- 2026

Which one of the following graph is not applicable for a 1st order reaction (R \(\rightarrow\) P)?

For a reaction having three steps, the overall rate constant is \( K = \frac{k_1 k_2}{k_3} \). The values E\(_{a1}\), E\(_{a2}\) and E\(_{a3}\) (activation energies stepwise) are 40, 50 and 60 kJ mol\(^{-1}\) respectively. Then the overall E\(a\) (activation energy) of the reaction is ______

Given below are the half-cell reactions:
$Mn^{2+} + 2e^- \rightarrow Mn$ (E$^\circ$ = -1.18 V)
$Mn^{3+} + e^- \rightarrow Mn^{2+}$ (E$^\circ$ = +1.51 V)
The E$^\circ_{cell}$ for $3Mn^{2+} \rightarrow Mn + 2Mn^{3+}$ will be \textunderscore\textunderscore\textunderscore\textunderscore