9. Alkenes and Alkynes

Which of the following alkenes is the major product according to the $\mathrm{Zaitsev}$ rule in the $E2$ dehydrohalogenation of $2-\mathrm{bromobutane}$?

Using Zaitsev's rule, which of the following alkenes is expected to be the most stable product in an elimination reaction?

Which of the following alkenes is the major (Zaitsev) product formed in the E2 dehydrohalogenation of $C_3{H}_7\mathrm{Br}$ (2-bromopropane) with a strong base?

Predict ALL of the products of the following reactions. Label them as either major or minor if necessary.

Predict ALL of the products of the following reactions. Label them as either major or minor if necessary.

Predict ALL of the products of the following reactions. Label them as either major or minor if necessary.