MCQ
Consider the following sequence of reaction $A, B, C$ are


- ✓Benzene, Nitrobenzene and Aniline
- BBenzene, Di-nitrobenzene and m-nitro aniline
- CBenzene, Nitrobenzene and azoxy benzene
- DBenzene, Nitrobenzene and Hydrazobenzene

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(At. No. $Ti = 22, Cr = 24, Co = 27, Zn = 30$)
| gas | $Ar$ | $Ne$ | $Kr$ | $Xe$ |
| $a /\left( atm \,dm ^{6} \,mol ^{-2}\right)$ | $1.3$ | $0.2$ | $5.1$ | $4.1$ |
| $b /\left(10^{-2} \,dm ^{3}\, mol ^{-1}\right)$ | $3.2$ | $1.7$ | $1.0$ | $5.0$ |
Which gas is expected to have the highest critical temperature?

$(A)$ $\mathrm{N}_2 \mathrm{O}$ $(B)$ $\mathrm{N}_2 \mathrm{O}_3$ $(C)$ $\mathrm{N}_2 \mathrm{O}_4$ $(D)$ $\mathrm{N}_2 \mathrm{O}_5$