Viết pt.

Đáp án:

$A: C_2H_2$ 

$B: CH_3CHO$

$D: C_2H_5OH$ 

$E: CH_3COOH$ 

$F: CH_3COONa$ 

$(1): 2CH_4\xrightarrow{{1500^oC}} C_2H_2+3H_2$ 

$(2): C_2H_2+H_2O\xrightarrow{{HgSO_4, H_2SO_4, t^o}} CH_3CHO$ 

$(3): CH_3CHO+H_2\xrightarrow{{Ni, t^o}} C_2H_5OH$ 

$(4): C_2H_5OH+O_2\xrightarrow{{\text{men giấm}}} CH_3COOH+H_2O$ 

$(5): CH_3COOH+NaOH\to CH_3COONa+H_2O$ 

$(6): CH_3COONa+NaOH\xrightarrow{{CaO, t^o}} CH_4+Na_2CO_3$