p -Block elements - ll — Chemistry STD 12 Science — Question

1. $ \mathrm{Cu}^{+} \rightarrow \mathrm{Cu}^{2+}+\mathrm{Cu} $
2. $ 3 \mathrm{MnO}_4{^-}+4 \mathrm{H}^{+} \rightarrow 2 \mathrm{MnO}_4{^-}+\mathrm{MnO}_2+2 \mathrm{H}_2 \mathrm{O} $
3. $ 2 \mathrm{KMnO}_4 \rightarrow \mathrm{K}_2 \mathrm{MnO}_4+\mathrm{MnO}_2+\mathrm{O}_2 $
4. $2 \mathrm{MnO}_4{^-}+3 \mathrm{Mn}^{2+}+2 \mathrm{H}_2 \mathrm{O} \rightarrow 5 \mathrm{MnO}_2+4 \mathrm{H}^{+} $

$k =\left(6.5 \times 10^{12} \,s ^{-1}\right) e ^{-26000 K / T }$

is followed for the decomposition of compound $A$. The activation energy for the reaction is $.....\,kJ$ $mol ^{-1}$. [nearest integer]

(Given: $R =8.314 \,J\, K ^{-1}\, mol ^{-1}$ )

$Br^-+ CH_3OH \rightarrow BrCH_3 + OH^-,$ is due to

Where $k_d\, =$ Dissociation constant