MCQ
How many resonance structures are there for anthracene ?


- A$6$
- B$5$
- ✓$4$
- D$2$


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${N_2}{O_4}(g)\, \to \,2N{O_2}(g)$
Data for the given reaction is
$\Delta H = +54\,kJ$ and $E_a = + 57.2\,kJ$
.......$kJ$