The indicator that is obtained by coupling the diazonium salt of sulphanilic acid with N, N-dimethyl aniline is
phenanthroline
methyl orange
methyl red
phenolphthalein
Methyl amine reacts with methyl iodide. For completion of reaction, how many moles of methyl iodide are required ?
1
2
3
4
Aniline reacts with acetaldehyde to form
Schiffs base
carbylamine
immine
none of these
A.
Schiffs base
Aniline or any 1° amine reacts with aldehyde to form Schiff s base or anils.