MCQ
Rank in the order of increasing acidity


- A$III < I < II$
- B$I < III < II$
- C$III < II < I$
- ✓$II < I < III$


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$\begin{array}{*{20}{c}}
O \\
{||} \\
{{C_6}{H_5} - C - C{H_3}}
\end{array}\mathop {\xrightarrow{{(i)\,B{r_2}/KOH}}}\limits_{(ii)\,{H^ \oplus }} CHB{r_3} + [X]$
$[X]$ will be :

undergoes intramolecular aldol condensation, the major product formed is :