Đáp án + Giải thích các bước giải:

$1\bigg)$

$NaCl+H_2SO_4\xrightarrow{<250^oC}NaHSO_4+HCl\uparrow$

$MnO_2+4HCl\to MnCl_2+Cl_2+2H_2O$

$Cl_2+2NaOH\xrightarrow[cmn]{đpdd}NaCl+NaClO+H_2O$

$2\bigg)$

$NaCl+H_2SO_4\xrightarrow{<250^oC}NaHSO_4+HCl\uparrow$

$2KMnO_4+16HCl\to 2KCl+2MnCl_2+5Cl_2+8H_2O$

$Ca(OH)_2+Cl_2\xrightarrow{30^oC}CaOCl_2+H_2O$

$3\bigg)$

$MnO_2+4HCl\to MnCl_2+Cl_2+2H_2O$

$2KMnO_4+16HCl\to 2KCl+2MnCl_2+5Cl_2+8H_2O$

$KClO_3+6HCl\to KCl+3Cl_2+3H_2O$

$4\bigg)$

$NaCl+H_2SO_4\xrightarrow{<250^oC}NaHSO_4+HCl\uparrow$

Đáp án + Giải thích các bước giải:

1) $NaCl + H_2SO_4 \overset{> 400^oC}{\longrightarrow} Na_2SO_4 + HCl$

$MnO_2 + 4HCl \longrightarrow MnCl_2 + Cl_2 + 2H_2O$

$2NaOH + Cl_2 \longrightarrow NaCl + NaClO + H_2O$

 2) $NaCl + H_2SO_4 \overset{> 400^oC}{\longrightarrow} Na_2SO_4 + HCl$

$2KMnO_4 + 16HCl \longrightarrow 2KCl + 2MnCl_2 + 5Cl_2 + 8H_2O$

$Ca(OH)_2 + Cl_2 \longrightarrow CaOCl_2 + H_2O$

3) $2KMnO_4 + 16HCl \longrightarrow 2KCl + 2MnCl_2 + 5Cl_2 + 8H_2O$

$MnO_2 + 4HCl \longrightarrow MnCl_2 + Cl_2 + 2H_2O$

$KClO_3 + 6HCl \longrightarrow KCl + 3Cl_2 + 3H_2O$

4) $NaCl + H_2SO_4 \overset{> 400^oC}{\longrightarrow} Na_2SO_4 + HCl$