1. $CH_3-CH_3+ Cl_2\buildrel{{1:1, askt}}\over\longrightarrow CH_3-CH_2Cl+ HCl$ 
2.

$CH_3-CH_2-CH_3+ Cl_2\buildrel{{1:1, askt}}\over\longrightarrow CH_3-CHCl-CH_3+ HCl$ 

$CH_3-CH_2-CH_3+ Cl_2\buildrel{{1:1, askt}}\over\longrightarrow CH_3-CH_2-CH_2Cl+ HCl$ 

Cái đầu là sp chính nha
3. 

$CH_3-CH_2-CH_2-CH_3+ Cl_2\buildrel{{1:1, askt}}\over\longrightarrow CH_3-[CCl-CH_3]-CH_3+ HCl$ 
$CH_3-CH_2-CH_2-CH_3+ Cl_2\buildrel{{1:1, askt}}\over\longrightarrow CH_3-CH_2-CH_2-CH_2Cl+ HCl$ 
Cái đầu là sp chính nha

4. $CH_4 + Cl_2 \buildrel{{1:1, askt}}\over\longrightarrow CH_3Cl$
8.

$CH_3-[CH-CH_3]-CH_3+ Br_2\buildrel{{1:1}}\over\longrightarrow CH_3-[CBr-CH_3]-CH_3+ HBr$ 
$CH_3-[CH-CH_3]-CH_3+ Br_2\buildrel{{1:1}}\over\longrightarrow CH_3-[CH-CH_3]-CH_2Br+ HBr$ 
Cái đầu là chính
10. 

$CH_3-[CH-CH_3]-CH_2-CH_3+Cl_2\buildrel{{1:1, askt}}\over\longrightarrow CH_2Cl-[CH-CH_3]-CH_2-CH_3+ HCl$ 
$CH_3-[CH-CH_3]-CH_2-CH_3+Cl_2\buildrel{{1:1, askt}}\over\longrightarrow CH_3-[CCl-CH_3]-CH_2-CH_3+ HCl$ 
$CH_3-[CH-CH_3]-CH_2-CH_3+Cl_2\buildrel{{1:1, askt}}\over\longrightarrow CH_3-[CH-CH_3]-CHCl-CH_3+ HCl$ 

$CH_3-[CH-CH_3]-CH_2-CH_3+Cl_2\buildrel{{1:1, askt}}\over\longrightarrow CH_3-[CH-CH_3]-CH_2-CH_2Cl+ HCl$ 

cái chính là cai thứ 2 
11. 
$C_4H_{10}+\dfrac{13}{2}O_2\xrightarrow{t^o} 4CO_2+5H_2O$

14. 

$C_3H_8\buildrel{{t^o,xt}}\over\longrightarrow CH_4+ C_2H_4$ 

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