In the given reaction,$[X]$ will be:

Which one of the following is the strongest base in aqueous solution?

What is the correct order of basicity for the following compounds?
$(1)$ $NH_3$
$(2)$ $CH_3CH_2NH_2$
$(3)$ $(CH_3)_2NH$
$(4)$ $CH_3CONH_2$

Secondary and tertiary amines do not give the carbylamine test because...

When $R-CO-NH_2$ is treated with $Br_2$ and $KOH$,it gives $R-NH_2$ as the major product. Which intermediate is involved in this 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 :