MCQ
The species having pyramidal shape is
- ✓$\mathrm{SO}_3$
- B$\mathrm{BrF}_3$
- C$\mathrm{SiO}_3^{2-}$
- D$\mathrm{OSF}_2$

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$2HI_{(g)} \to H_{2(g)} + I_{2(g)}$
is $200 \frac {KJ}{mol}$ at $600 \,K$. Calculate the fraction of molecules of reactant having energy equal to or greater than activation energy ?