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Q.
Which of the following compound(s) has $'Z'$ configuration ?
EAMCETEAMCET 2008
Solution:
When the groups with higher priority (ie, with high atomic number) are present on same side of double bond, then the configuration is $Z$ but when present on opposite side of double bond, the configuration is $E$.
Hence, compound (i) and (iii) have $(Z)$ configuration.
