MCQ
Given : $I$ and $II$ are


- Aidentical
- ✓a pair of conformers
- Ca pair of geometrical isomers
- Da pair of optical isomers

Thus both the structures are conformers of each other.
Out of these two structures, one is in staggered conformation and other is in eclipsed conformation.
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($1$) The product $S$ is
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($2$) The reactions, $Q$ to $R$ and $R$ to $S$, are
$[A]$ Dehydration and Friedel-Crafts acylation
$[B]$ Aromatic sulfonation and Friedel-Crafts acylation
$[C]$ Friedel-Crafts alkylation, dehydration and Friedel-Crafts acylation
$[D]$ Friedel-Crafts alkylation and Friedel-Crafts acylation
Given the answer quetion ($1$) and ($2$)
Choose the correct option.