\(\mathrm{B}>\mathrm{D}>\mathrm{C}>\mathrm{A}>\mathrm{E}\)
Correct \(\mathrm{pKa}\) Order :
\(\text { B }<\text { D }<\text { C }<\text { A }<\text { E }\)
All options are incorrect.
(1) $CH_2=CH_2$
(2) $[Figure]$
(3) $H-C \equiv C-H$
(4) $NH_3$