Question

how many hyperconjugation structure are possible for the molecule 2 methyl 2 butene​

Answer 1

Explanation:

2-Methyl-2-butene undergo addition with HBr to form two products, that is, 2-bromo-2-methylbutene and 2-bromo-3-methylbutane. Here, 2-bromo-2-methylbutane is the major product because this reaction follows Markovnikov's rule.

Answer 2

9 hyperconjugation structure are possible for the molecule 2 methyl 2 butene.

• The hyperconjugation effect is a permanent effect in which the delocalization of sigma electrons of the C-H bond of an alkyl group is directly attached to an atom of the unsaturated system takes place.
• The structure of 2 methyl 2 butene is $(H_3C)_2-CH=CH-CH_3$.
• The number of hyperconjugation structures depends on the number of alpha hydrogen.
• This compound has 9 alpha hydrogen so, 9 hyperconjugation structure are possible for the molecule 2 methyl 2 butene.