Assign E or Z configurations to each alkene below.

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For assigning E and Z configuration we need to compare the groups attached to the double bond on both sides

first structure left side if u compare both groups the keto group gets highest priority (a) and the methyl group is having lower priority(b). the right side -CH2OH group gets highest priority (a) and H gets lower priority(b) if both a's and b's are on same side then the structure is in Z- configuration. if both a's and b's are on opposite side then the structure is in E- configuration.first structure is in E configuration second is in Z-configuration

Hello beardy, did answer help?