Question

Sapling Learning macmang Rank substituents in order of their priority when assigning the E or Z label to an alkene. highest priority lowest priority Bra CH C CH3 H

Answer 1

E -Z notation follows priority according to the atomic Number

Higher Atomic number gets first priority

Here ( Br ) - Atomic number - 35

( Cl ) - Atomic number - 17

( C ) - Atomic number - 6

( H ) - Atomic number - 1

If the first atom is common, then we have to see the attached atom's Atomic number and give the priority.

-CH2Cl and - CH3 groups have same C atom but differ in their attached atoms based on that we give first priority to - CH2Cl

Thus order of higher priority of the groups is

Br > Cl > CH2Cl > CH3 > H