Câu 1:
a,
$n_{CO_2}=\dfrac{16,8}{22,4}=0,75(mol)$
$n_{H_2O}=\dfrac{16,2}{18}=0,9(mol)$
$n_{CO_2}<n_{H_2O}\to X$ là ankan $C_nH_{2n+2}$
$n_X=n_{H_2O}-n_{CO_2}=0,15(mol)$
$\to n=\dfrac{n_{CO_2}}{n_X}=5$
Vậy CTPT $X$ là $C_5H_{12}$
b,
(1) $C_5H_{12}+Cl_2\xrightarrow{{as}} C_5H_{11}Cl+HCl$
(2) $C_5H_{12}+8O_2\xrightarrow{{t^o}} 5CO_2+6H_2O$
(3) không phản ứng
Câu 2:
$CH_2=CH-CH_2-CH_2-CH_2-CH_3$: hex-1-en
$CH_3-CH=CH-CH_2-CH_2-CH_3$: hex-2-en
$CH_3-CH_2-CH=CH-CH_2-CH_3$: hex-3-en
$CH_2=C(CH_3)-CH_2-CH_3$: 2-metylbut-1-en
$CH_3-CH(CH_3)-CH=CH_2$: 3-metylbut-1-en
