Explain why aniline is less basic than methylamine ?

Aniline is less basic than ammonia. Why?

Account for the following : (a) (CH_(3))_(2)NH is a stronger base than NH_(3) (b) CH_(3)CH_(2)NH_(2) is more basic than CH_(3)CONH_(2) (c) Aniline is less basic than Ethyl amine (d) On sulphonation of aniline, p-amino benzene sulphonic acid is formed.

Which of the following is more appropriate reason of aniline being less basic than aliphatic amines ?

Explain why amines are less acidic than alcohols of comaparable molecular masses.

Explain why aniline in strong acidic medium gives a mixture of Nitro anilines and what steps need to be taken to prepare selectively P - nitro aniline.

Explain why is sodium less reactive than potassium.

Explain why atomic radius of Ga is less than that of Al.