Alkenes：練習問題

When propene reacts with bromine water, \(\text{Br}_2(\text{aq})\), the organic product formed is:

Which of the following compounds can exist as a pair of geometric (E-Z) isomers?

During the electrophilic addition of hydrogen bromide to propene, which species is formed as the major intermediate that leads to the major product?

What is the catalyst used in the industrial hydrogenation of ethene to form ethane?

In the electrophilic addition of hydrogen bromide to but-1-ene, which carbocation intermediate is the most stable?

State the IUPAC name of the organic product formed when ethene reacts with steam in the presence of an acid catalyst.

Alkanes and alkenes are important homologous series in organic chemistry.

(a) Define the term homologous series.
(b) Draw the skeletal formula for 2-methylbut-2-ene.
(c) When 2-methylbut-2-ene reacts with hydrogen bromide, two possible products are formed. Name the major product and explain why it is formed in greater yield than the minor product with reference to carbocation stability.