(c)
Aluminium tertiary butoxide is an oxidising agent used for the oxidation of secondary alcohols into ketones.
$CH_{3} - CH_{2} - CH - CH_{2} - CH_{3}$
|
$OH$
3-pentanol
$\overset{Al\left\lbrack OCMe_{3} \right\rbrack_{3}/acetone}{\rightarrow}CH_{3} - CH_{2} - C - CH_{2} - CH_{3}$
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$\ O$
3-pentanone