`1,3-`Butadiene with bromine in molar ratio generates prodominantly.

1,2-butadiene has

The major product obtained in the reaction of 1,3- Butadiene with HCl ( 1 mole) at a higher temperature ( 100^(@)C or above ) is

Assertion : 1,3- Butadiene is the monomer for natural rubber. Reason : Natural rubber is formed though anionic addition polymerization.

Reaction of one molecule of HBr with one molecule of 1,3-butadiene at 40^(@) C gives predominantly.