question_answer

How many of following order are correct

(I)

(II)

(III) \[C{{H}_{3}}-\underset{Cl}{\overset{Cl}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-COOH<C{{H}_{3}}-\underset{F}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-COOH\]Order of \[p{{K}_{a}}\]

(IV) \[\begin{align}   & C{{H}_{3}}-CH=CH\underset{\left( a \right)}{\mathop{\underset{\uparrow }{\mathop{-}}\,}}\,C{{H}_{2}}\underset{\left( b \right)}{\mathop{\underset{\uparrow }{\mathop{-}}\,}}\,C{{H}_{2}}-C{{H}_{3}} \\  & a<b \\ \end{align}\]

Order of bond length  

Answer:

4.00