Giúp tớ câu 12 với

Tớ cảm ơnnnnn

Đáp án `+` Giải thích các bước giải:

$\rm A:C_2H_2$
$\rm B:CH_3CHO$
$\rm C:C_2H_5OH$
$\rm D:CH_3COOH$
$\rm E:CH_3COOC_2H_5$
$\rm F:CH_3COONa$
$\rm 2CH_4 \xrightarrow[\text{làm lạnh nhanh}]{t^o} C_2H_2 + 3H_2$

$\rm C_2H_2 + H_2O \xrightarrow{HgSO_4/H_2SO_4} CH_3CHO$
$\rm CH_3CHO + H_2 \xrightarrow[t^o]{Ni} C_2H_5OH$
$\rm C_2H_5OH + O_2 \xrightarrow{\text{men giấm}} CH_3COOH + H_2O$
$\rm CH_3COOH + NaOH \rightarrow CH_3COONa + H_2O$
$\rm 2CH_3CHO + O_2 \xrightarrow[t^o]{Mn^{2+}} 2CH_3COOH$
$\rm CH_3COOH + C_2H_5OH \buildrel{{H_2SO_{4(đặc)},t^o}}\over\rightleftharpoons CH_3COOC_2H_5 + H_2O$

$\rm CH_3COOC_2H_5 + NaOH \xrightarrow{t^o} CH_3COONa + C_2H_5OH$
$\rm CH_3COONa + NaOH \xrightarrow{CaO,t^o} CH_4 + Na_2CO_3$
$\rm 2CH_4 \xrightarrow[\text{làm lạnh nhanh}]{t^o} C_2H_2 + 3H_2$