The final product of complete oxidation of hydrocarbons is

Which of the following $C-H$ bond has the least bond dissociation energy?

Product $(C)$ of the above reaction is

Cyclohexane,a hydrocarbon,floats on water because:

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 major product of the following reaction contains $.....$ bromine atom$(s)$.