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  4. Which of the following is an incorrect name according to IUPAC ?

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Q. Which of the following is an incorrect name according to $IUPAC$ ?

Organic Chemistry – Some Basic Principles and Techniques

Solution:

Here, the parent ring is wrongly numbered
image
2-bromo-1, 1-dichlorocyclobutane
Correct number series: $1,1,2$
Wrong number series: $1,2,2$
(lower number coming at first occasion of difference is the correct number series)