$a)\begin{cases}Etanol:C_2H_5OH \\Glixeron:C_3H_5(OH)_3\\Andehitaxetic:(CH_3CO)_2O \end{cases}$$+Na\Rightarrow Andehitaxetic:$khong co khi hidro bay ra
$+Cu(OH)_2\Rightarrow Glixeron:$hoa tan va tao dung dich mau xanh tham
$b)\begin{cases}Propan-1-ol:CH_3CH_2OH \\Propan-2-ol:CH_3CHOHCH_3\\Andehitaxetic:(CH_3CO)_2O \end{cases}$
$+Na\Rightarrow Andehitaxetic:$khong co khi hidro bay ra
$+CuO\Rightarrow Propan-1-ol:$tao ra san pham co phan ung trang bac
$CH_3CH_2CH_2OH\overset{+CuO}{\rightarrow}CH_3CH_2CHO\overset{+Ag_2O/NH_3}{\rightarrow}Ag\downarrow$