2, CH3-CH2C(CH3)2CH(C2H5)CH3 : 4-etyl 3,3-đimetylpentan

3,

+ 4-etyl-3,3-đimetyl hexan : CH3-CH2-C(CH3)2-CH(C2H5)-CH2-CH3

+ 1-brom-2-clo-3-metyl pentan : CH2Br-CHCl-CH(CH3)-CH2-CH3

+3-etyl-2-metyl pent-2-en : CH3-C(CH3)=C(C2H5)-CH2-CH3

+1,2-điclo-3-etyl-2-metyl hexan : CH2Cl-CHCl(CH3)-CH(C2H5)-CH2-CH2-CH3

+ 3-etyl-2-metyl pent-1-en : CH2=C(CH3)-CH(C2H5)-CH2-CH3

+ 3-etyl-4-metyl pent-1-in : CH\(\equiv\)C-CH(C2H5)-CH(CH3)-CH3

+ 2,2,3-trimetyl pentan : CH3-C(CH3)2-CH(CH3)-CH2-CH3

+ 2,2-điclo-3-etyl pentan : CH3-CCl2-CH(C2H5)-CH2-CH3

+ But-1,3-đien : CH2=CH-CH=CH2

+ Vinyl axetilen : CH\(\equiv\)C-CH=CH2

+ But-1-in : CH\(\equiv\)C-CH2-CH3

+ Pent-2-en : CH3-CH=CH-CH2-CH3

1.\(CH_2Cl-CH-CH\left(CH_3\right)-CH_2-CH_3\)

1-clo-3-metylpentan

2.\(CH_2-CH_2-CH\left(CH_3\right)-CH_3\)

2-metylbutan

3.\(CH_3-CH\left(CH_3\right)-CH_2-CH\left(CH_3\right)-CH_2-CH_3\)

2,4-đimetylhexan

Đáp án: D.

a) \(CH_3-CH_2-C\left(CH_3\right)_2-CH\left(C_2H_5\right)-CH_2-CH_3\)

b) \(CH_2Br-CHCl-CH\left(CH_3\right)-CH_2-CH_3\)

c) \(CH_2Cl-CCl\left(CH_3\right)-CH_2-CH_2-CH_2-CH_3\)

d) \(CH_3-CH\left(CH_3\right)-CH_2-CH_3\)

1. 

2. 

3. 

Đáp án A

(CH₃)₂CHCH₂CH₃ → - H 2 500 0 C ,   x t CH₂=C(CH₃)CH₂CH₃ + (CH₃)₂C=CHCH₃ + (CH₃)₂CHCH=CH₂

→ Tên gọi của X là 2-metylbutan