Test

Ethyl cyanide

Ethyl isocyanide

Smell

Strong but pleasant

Extremely unpleasant

Dipole moment

More ( ≈ 4D)

Less (» 3D)

B.P.

98°C(i.e. High)

78°C (i.e. low)

Solubility in water.

Soluble

Insoluble

Hydrolysis with acids

Gives propionic acid (Acid, in general)

Give ethyl amine (1° amine, in general)

Hydrolysis with alkalies

Same as above

No action

Reduction

Gives propylamine (1° amine, in general)

Gives ethylmethyl amine (2° amine, in general)

Stephen's reaction

Gives propionaldehyde (Aldehyde, in general)

Does not occur

Heating (250°C)

No effect

Ethyl cyanide is formed