Câu 4. Viết PTHH thực hiện sơ đồ chuyển hóa sau
a) HCl \(\rightarrow\) Cl2 \(\rightarrow\) FeCl3 \(\rightarrow\) NaCl \(\rightarrow\) HCl --> CuCl2 --> AgCl
b) KMnO4\(\rightarrow\)Cl2\(\rightarrow\)HCl \(\rightarrow\)FeCl3 \(\rightarrow\) AgCl\(\rightarrow\) Cl2\(\rightarrow\)Br2\(\rightarrow\)I2\(\rightarrow\)ZnI2 \(\rightarrow\)Zn(OH)2
c) KCl\(\rightarrow\) Cl2\(\rightarrow\)KClO\(\rightarrow\)KClO3\(\rightarrow\)KClO4\(\rightarrow\)KCl\(\rightarrow\)KNO3
d) Cl2\(\rightarrow\)KClO3\(\rightarrow\)KCl\(\rightarrow\) Cl2\(\rightarrow\)Ca(ClO)2\(\rightarrow\)CaCl2\(\rightarrow\)Cl2\(\rightarrow\)O2
e) KClO3 \(\rightarrow\) Cl2 \(\rightarrow\) KClO3 \(\rightarrow\) KCl \(\rightarrow\) Cl2 \(\rightarrow\) HCl \(\rightarrow\) FeCl2 \(\rightarrow\) FeCl3 \(\rightarrow\) Fe(OH)3