CHO ANKAN A COỰ TEÕN GOÙI
21.
Cho ankan A coự teõn goùi: 3 – etyl – 2,4 – dimetylhexan. CTPT cuỷa A laứ:
A) C
11
H
24
B) C
9
H
20
C) C
8
H
18
D) C
10
H
22
21.
Cho ankan A coự teõn goùi: 3 – etyl – 2,4 – dimetylhexan. CTPT cuỷa A laứ:
A) C
11
H
24
B) C
9
H
20
C) C
8
H
18
D) C
10
H
22