Помогитее химия!!!!!!! 5 номер!!

Question

Помогитее химия!!!!!!! 5 номер!!

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Answer 1

2CH4-->C2H2+3H2
C2H4+H2O--HgSO4-->CH3COH
CH3COH+H2-->C2H5OH
C2H5OH+HBr-->C2H5Br+H2O
C2H5Br-->C2H4+HBr
C2H4+H2O-->C2H5OH
C2H5OH-->CH3COH+H2