Question

When aromatic hydrocarbons are treated with chloroform and aluminum chloride, orange to red colours are obtained. These colours are due to the formation of triarylmethane, $A{r}_{3}CH$.

• A. True
• B. False

Answer 1

The correct option is A True

When aromatic hydrocarbons are treated with chloroform and aluminum chloride, orange to red colours are obtained. These colours are due to the formation of triarylmethyl cations, $A{r}_3{C}^{+}$ which are formed by a Friedel-Craft reaction followed by a transfer of hydride ion.