Question

Classify the given isomer pair as $E$ and $Z$ isomer:

Answer 1

If the two groups of higher priorities are on the same side of the double bond, that is said to be Z- isomer

If the two groups of higher priorities are on opposite side of the double bond, that is said to be E-isomer.

Here first one E isomer because bulky groups are in opposite side

second one is Z isomer because bulky groups are in same side