MCQ
What is not true about ice?
- AIt has open cage like structure
- BIt has less density than water
- CEach $O$ atom is surrounded by $4\,H$ atoms
- ✓Each $O$ atom has four $H-$ bonds around it

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$2 \mathrm{H}_{2}(\mathrm{g})+2 \mathrm{NO}(\mathrm{g}) \rightarrow \mathrm{N}_{2}(\mathrm{g})+2 \mathrm{H}_{2} \mathrm{O}(\mathrm{g})$
the observed rate expression is, rate $=\mathrm{k}_{\mathrm{f}}[\mathrm{NO}]^{2}\left[\mathrm{H}_{2}\right] .$ The rate expression of the reverse reaction is