MCQ
Correct order of acidic strength is ?


- A$(a) > (c) > (d) > (b)$
- B$(d) > (a) > (c) > (b)$
- ✓$(d) > (c) > (a) > (b)$
- D$(d) > (c) > (b) > (a)$


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$(I)$ $C_6H_5-CH-Br$
$(II)$ $\begin{array}{*{20}{c}}
{{C_6}{H_5} - CH - {C_2}{H_5}} \\
{|\,\,\,} \\
{Br}
\end{array}$
(At. nos. $Cr = 24, \,Mn = 25,\, Fe = 26, \,Co = 27$)