15.

$C_4H_{10}\buildrel{{t^o, xt}}\over\longrightarrow C_2H_6+ C_2H_4$

$C_2H_6+Cl_2\buildrel{{as}}\over\to C_2H_5Cl+ HCl$

16.

$CH_3COONa+NaOH\buildrel{{CaO, t^o}}\over\longrightarrow CH_4+Na_2CO_3$

$CH_4+Cl_2\buildrel{{as}}\over\longrightarrow CH_3Cl+HCl$

$CH_3Cl+Cl_2\buildrel{{as}}\over\longrightarrow CH_2Cl_2+HCl$

$CH_2Cl_2+Cl_2 \buildrel{{as}}\over\longrightarrow CHCl_3+HCl$

$CHCl_3+Cl_2 \buildrel{{as}}\over\longrightarrow CCl_4+HCl$

Giải thích các bước giải:

15.

$C_4H_{10}\xrightarrow{t^o,xt}C_2H_4↑+C_2H_6↑$

$C_2H_6+Cl_2\xrightarrow{As}C_2H_5Cl+HCl$

16.

$CH_3COONa+NaOH\xrightarrow{t^o,CaO}Na_2CO_3+CH_4↑$

$CH_4+Cl_2\xrightarrow{As}CH_3Cl+HCl$

$CH_3Cl+Cl_2\xrightarrow{As}CH_2Cl_2+HCl$

$CH_2Cl_2+Cl_2\xrightarrow{As}CHCl_3+HCl$

$CHCl_3+Cl_2\xrightarrow{As}CCl_4+HCl$