The NH2 group in aniline is a strong electron-donating group, making it ortho and para directing in electrophilic aromatic substitution. Aniline does not undergo Friedel-Crafts reactions due to the formation of a complex with AlCl3, deactivating the benzene ring.
The compound with molecular formula C\(_6\)H\(_6\), which gives only one monobromo derivative and takes up four moles of hydrogen per mole for complete hydrogenation has ___ \(\pi\) electrons.
Conc. HNO\(_3\)