I don't K of but I think no cause different substances are different
Answer: Alkanes undergo a substitution reaction with halogens in the presence of light. ... This reaction is a substitution reaction because one of the hydrogen atoms from the methane is replaced by a bromine atom
Explanation:
If the totaling of bromine to cis-cinnamic acid uses the
same mechanism or device as the addition to trans-cinnamic acid, addition of
bromine only transpires on the top (syn) and not the bottommost face (anti). Therefore,
bromine added to cis-cinnamic only adds to the same face (syn addition) as a
result producing only threo dibromides.