In trimethyl ammonium ion, the number of sigma bonds attached to nitrogen are

The number of coordinate bond/bonds in a trialkyl ammonium ion is

The number of electrons in the valence shell of nitrogen in methyl amine is

Ethanamine reacts with excess of acetyl chloride to form

The compound used for acylation of amine is

Dimethyl amine reacts with acetyl chloride to give

A mixture of $C{H}_{3}N{H}_2,(C{H}_3{)}_{2}NH,(C{H}_3{)}_{3}NCH\_3NH\_2,\; (CH\_3)\_2\; NH,\; (CH\_3)\_3\; N$ can be distinguished by using

In the acetylation reaction the H-atom of an amine is replaced by

Amines are basic in nature

The correct order of increasing basic strength is