MCQ
Which of the following has lowest $pK_a$ value ?
- A

- B

- C

- ✓







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$I.\, Al_2Cl_6\,\,\, II.\, B_2H_6\,\,\, III.\, Fe_2Cl_6\,\,\, IV.\, Si_2H_6$
Reason : The reaction between nitrogen and oxygen requires high temperature.
$2KCl{O_4}(s) \rightleftharpoons 2KCl(s) + 3{O_2}(g)$
If $\Delta {H^o} = 25\,kcal/mol$ and $\Delta {S^o} = 50\,cal/K$, at what temperature equilibrium will be established in the container. (Ignore variation of $\Delta {H^o}$ and $\Delta {S^o}$ with temperature.)......$K$