When addition of `Br_2` was carried out in presence of aq. NaCl on ethene than total number of possible products is:

The addition of HBr gives the same product in the presence or absence of peroxide when the alkene is

Addition of HBr gives same product in the presence or absence of peroxide when alkene is

The reaction of ethylene with Br_(2) in water in the presence of NaCl gives

Ethane and chlorine when allowed to react in presence of light, the total possible products (excluding stereoisomers if any)

Addition of Cl_(2) or Br_(2) (in the presence of sunlight) to the benzene follow