Arrange the following amines in the increasing order of their `pK_a` values.
Aniline, Cychlohexylamine,4-Nitroaniline`.

Arrange the following amines in the increasing order of their _pK_b values. Aniline,4-Methoxyaniline and 4-Nitroaniline.

Arrange the following amines in the increasing order of their _pK_b values. Aniline, N-methylamine and cyclohexylamine.

Arrange the following amines in the increasing order of their _pK_b values. Phenlymethylamine,2-Amino toluene, and 2-fluoroaniline

Arrange the following amines in the decreasing order of their basic nature. Aniline, propan-1-amine and N-methyl-ethanamine

Arrange the following amines in the decreasing order of their basic nature. N-Methylaniline,phenylmethylamine and N-phenylaniline.

Arrange the following amines in an increasing order of boiling points. n-propylamine, ethylmethylamine, trimethylamine.

Arrange the following amines in the decreasing order of their basic nature. Benzene-1,4-Diamine, ammonia and 4-Aminobenzoic acid.

Answer the following questions: Arrange the following metals in the increasing order of their activity: copper, Silver , Aluminium , Iron.

Arrange the following acids in order of their decreasing acidity.

Arrange the following compounds in the decreasing order of their solubility in water. Ethylamine,n-propaylamine and n-butylamine