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

$RCH _2 Br + I ^{-} \stackrel{\text { Acetone }}{\longrightarrow} \underset{\text { major }}{ RCH _2 I + Br ^{-}}$

The correct statement is :

The rate constants of the above reaction at $200 \,K$ and $300 \,K$ are $0.03 \,min ^{-1}$ and $0.05 \,min ^{-1}$ respectively. The activation energy for the reaction is $....J$ (Nearest integer)

(Given : In $10=2.3$

$R =8.3\,J\,K ^{-1}\, mol ^{-1}$

$\log 5=0.70$

$\log 3=0.48$

$\log 2=0.30$

$(I)$ ${O_3} \to $ product

$(II)$ $C{r_2}O_7^{2 - }\xrightarrow{{{H^ + }}}$ product

$(III)$ $MnO_4^\Theta \xrightarrow{{{H^ + }}}$ product

$(IV)$ $H_2S \longrightarrow $  product

$C{u_{\left( s \right)}} + 2Ag_{\left( {aq} \right)}^ +  \to Cu_{\left( {aq} \right)}^{2 + } + 2A{g_{\left( s \right)}}$