Question

question 8 (1 point)
the iupac name of the following organic compound is
cl
cl
a) 1, 5 - dichlorobenzene
b) 1, 2 - dichlorobenzene
c) 1, 3 - dichlorobenzene
d) 1, 3 - dibenzochloride
e) 1, 5 - dibenzochloride

Explanation:

• The compound is a benzene ring with two chlorine substituents.
• In IUPAC naming, we number the substituents to get the lowest possible numbers.
• For two substituents on a benzene ring, when they are adjacent (1 - 2 positions), it is ortho - dichlorobenzene. When they are separated by one carbon (1 - 3 positions), it is meta - dichlorobenzene. When they are opposite (1 - 4 positions), it is para - dichlorobenzene.
• In the given structure, the two chlorine atoms are on adjacent carbon atoms of the benzene ring.

Answer:

B. 1, 2 - dichlorobenzene