MCQ
Thermally most stable compound is
- A$HOClO_3$
- B$HOClO_2$
- ✓$HOCl$
- D$HOClO$
$I _2\,<\, Br _2\,<\, Cl _2\,<\, F _2$
$F _2$ is better oxidizing agent in water than chlorine due to greater hydration energy.
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| Rate constant | Activation energy | |
| Step $1$ | $k_1$ | $E_{a_1} = 180\,kJ /mol$ |
| Step $2$ | $k_2$ | $E_{a_2} = 80\,kJ /mol$ |
| Step $3$ | $k_3$ | $E_{a_3} = 50\,kJ /mol$ |
overall rate constant, $k = {\left( {\frac{{{k_1}{k_2}}}{{{k_3}}}} \right)^{2/3}}$ overall activation energy of the reaction will be ........ $kJ\,mol$

$X \left| X ^{2+}(0.001 M ) \| Y ^{2+}(0.01 M )\right| Y$
is $.......\times 10^{-2} V$ (Nearest integer).
Given: $E _{ x ^{2+} \mid x }^0=-2.36\,V$
$E _{ Y ^{3+} \mid Y }^0=+0.36\,V$
$\frac{2.303\,RT }{ F }=0.06\,V$