Light or heat
Hv or Δ
Chlorination is faster than bromination.
Chlorination is slower than bromination.
Chlorination yields a mixture of products, while bromination usually yields only one major product.
Chlorination usually yields only one major product, while bromination yields a mixture of products.
Less reactive reagents are more selective.
More reactive reagents are more selective.
Oxidation with ROOR followed by elimination of OH.
Radical halogenation with Br2 followed by elimination of HBr.
Allylic bromination with NBS followed by elimination of HBr.
Radical addition of HBr followed by substitution of Br-.
All of the above
No change in the stereochemistry of the products.
A racemic mixture of enantiomers
A pair of diastereomers
An achiral product