Identify (Z) in the following series.
`Ethanol overset(PBr_(3))to (X) overset(Alc.//KOH)to (Y) overset((i)H_(2)SO_(4)//("Room temp")) underset((ii)(H_(2)O,Heat))to(Z)`

Options

A. `CH_(3)CH_(2)-OH`
B. `CH_(2)=CH_(2)`
C. `CH_(3)CH_(2)-o-CH_(2)CH_(3)`
D. `CH_(3)CH_(2)-O-SO_(3)H`

Answer

A

Explanation

`{:(" "CH_(3)-CH_(2)-OH overset(PBr_(2))to CH_(3)-CH_(2)-Br),(" "darrAlc.KOH),(CH_(3)-CH_(2)-OH underset("Room temp."(ii) H_(2)O,"heat")overset((i)H_(2)SO_(4))larr CH_(2)=CH_(2)):}`