MCQ
Rank in the order of increasing acidity


- A$III < I < II$
- B$I < III < II$
- C$III < II < I$
- ✓$II < I < III$


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$9\, mol$ $O_2$ and $14\, mol$ $N_2$ here allowed to react. When $3\, mol$ $O_2$ remains unreacted, till then how many moles of $N_2O_3$ would have been produced?
[Assume steam to be an ideal gas. Given $A _{ vap } H ^{\ominus}$ for water at $373 \,K$ and $1\, bar$ is $41.1 \,kJ\, mol ^{-1} ; R =$ 8.31 $J\,K ^{-1} \,mol ^{-1}$ ]
