Question

hoàn thành các PTPƯ theo sơ đồ chuyển hóa sau:
a) canxicacbua -> axetilen -> cacbonic -> canxicacbonat
b) saccarozơ -> glucozo -> rượu etylic -> axit axetic
c) FeCl2 -> Fe -> FeCl3 -> Fe(OH)3 -> Fe2O3 -> Fe

Answer 1

\(a.\)

\(1.CaC_2+2H_2O\rightarrow C_2H_2+Ca\left(OH\right)_2\)

\(2.C_2H_2+H_2O\rightarrow H_2CO_3\)

\(3.H_2CO_3+Ca\left(OH\right)_2\rightarrow CaCO_3+2H_2O\)

\(b.\)

\(1.C_{12}H_{22}O_{11}+H_2O\rightarrow2C_6H_{12}O_6\)

\(2.C_6H_{12}O_6\rightarrow2C_2H_5OH+2CO_2\)

\(3.C_2H_5OH+O_2\underrightarrow{mengiấm}2CH_3COOH+2H_2O\)

\(c.\)

\(1.FeCl_2\rightarrow Fe+Cl_2\uparrow\)

\(2.Fe+Cl_2\rightarrow FeCl_3\)

\(3.FeCl_3+3NaOH\rightarrow Fe\left(OH\right)_3+3NaCl\)

\(4.2Fe\left(OH\right)_3\underrightarrow{t^0}Fe_2O_3+3H_2O\)

\(5.Fe_2O_3+3CO\rightarrow2Fe+3CO_2\)