Predict the product of the following reaction: $CH_2=CH-CH_2-CH_2-COOH \xrightarrow{Br_2, NaHCO_3} \text{Product}$

Which of the following would not rearrange to a more stable form?

Match the four starting materials $(P, Q, R, S)$ given in List-$I$ with the corresponding reaction schemes $(I, II, III, IV)$ provided in List-$II$ and select the correct answer using the code given below the lists. Codes: $P \quad Q \quad R \quad S$

The correct order of heat of hydrogenation of the given molecules is:

The hydrocarbon $(X)$ with molar mass $80 \ g \ mol^{-1}$ and $90 \%$ carbon has $............$ degree of unsaturation.

Which of the following best describes the flow of electrons in the acid-catalyzed dimerization of $(CH_3)_2C = CH_2$?