The number of $\pi$ electrons in the following molecule is:

  • A
    $2$
  • B
    $4$
  • C
    $5$
  • D
    $6$

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Similar Questions

Among the xylenes,which is thermodynamically most stable?

Given the following structures:
$(I)$ $1,3,5-$trimethylbenzene (mesitylene)
$(II)$ $1,3-$dimethyl$-5-$methylenecyclohexa$-1,3-$diene
$(III)$ $1,3,5-$trimethylenecyclohexane
The enthalpy of hydrogenation of these compounds will be in the order as:

The reaction ${C_6}{H_6} + C{H_3}Cl \xrightarrow{\text{anhydrous } AlCl_3} {C_6}{H_5}C{H_3} + HCl$ is an example of which of the following?

The reaction of benzene with $CO$ and $HCl$ in the presence of anhydrous $AlCl_3$ gives :

Which of the following structures are aromatic?

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