Lactic acid on heating with conc. $H_2SO_4$ gives

What will be the product of the reaction: $CH_3-CH=C(CH_3)_2 + HCl \to$ ?

The hydrocarbon with seven carbon atoms containing a neopentyl and a vinyl group is:

Which of the following structures represents $1,3\text{-butadiene}$?

For the reaction: $CH_2=CH-CH=CH_2 + HBr (1 \text{ eq}) \xrightarrow{80^{\circ}C} P_1 + P_2$ (where $P_1$ is the major product),identify $P_1$.

Explain the Markovnikov hydrohalogenation of an alkene.