Diazonium Salts

p-Toluenediazonium chloride $\stackrel{{\mathrm{SnCl}}_2+\mathrm{HCl}}{\to }$ what will be product of reaction?

Give the diazotisation reaction of aniline. Also give the chemical reaction involved in the preparation of red azo dye and light yellow azo dye.

Which of the following is structural formula of orange dye?

Which of the following Diazonium salt is stable at room temperature?

The reaction ${{\mathrm{ArN}}_2}^{+}{\mathrm{Cl}}^{-}\stackrel{ \mathrm{Cu}/\mathrm{HCl} }{\to }\mathrm{ArCl}+{\mathrm{N}}_2+\mathrm{CuCl}$ is named as