Among the following compounds $C_3H_7NH_2,$ $NH_3,$ $CH_3NH_2,$ $C_2H_5NH_2$ and $C_6H_5NH_2,$ the least basic compound is

The increasing order of nucleophilicity of the following nucleophiles is: $a. CH_3CO_2^-$,$b. H_2O$,$c. CH_3SO_3^-$,$d. OH^-$

The final product $[B]$ is :

What is the major product obtained from the following reaction?

Given below are two statements:
Statement $I$ : The $NH_2$ group in Aniline is ortho and para directing and a powerful activating group.
Statement $II$ : Aniline does not undergo Friedel-Craft's reaction (alkylation and acylation).
In the light of the above statements,choose the most appropriate answer from the options given below :

Given below are two statements:
Statement $I$: Aniline does not undergo Friedel-Crafts alkylation reaction.
Statement $II$: Aniline cannot be prepared through Gabriel synthesis.
In the light of the above statements,choose the correct answer from the options given below: