Alkenes Questions

In the following reactions, the major products $A$ and $C$ are respectively:$\text{2-methylbutan-2-ol}\stackrel{{\text{H}}^{+}/\Delta }{\to }A\text{ (Major)}\stackrel{\text{HBr/Dark}}{\to }C\text{ (Major)}$

The major product obtained on treatment of ${\text{CH}}_3{\text{CH}}_2{\text{CH(F)CH}}_3$ with ${\text{CH}}_3{\text{O}}^{-}/{\text{CH}}_3\text{OH}$ is:

How many stereoisomers does the molecule ${\text{CH}}_3\text{CH}={\text{CHCH}}_2{\text{CHBrCH}}_3$ have?

In the following reaction:

The major product $A$ is:

$2,3$ -Dimethyl-$2$ -butene can be prepared by heating which of the following compounds with a strong acid?

In the reaction with $\text{HCl}$, an alkene reacts in accordance with the Markovnikov’s rule, to give a product $1$ -chloro-$1$ -methylcyclohexane. The possible starting alkene is:

Which of the following compounds shall not produce propene by reaction with $\text{HBr}$ followed by elimination or direct only elimination reaction?