The octane number is associated with which petroleum product?

What are the bond enthalpies and bond lengths between carbon and carbon atoms in alkanes and alkenes?

The main product of the following reaction is:

Which of the following is the best stereochemical representation for the reaction between $1$-methylcyclohexene and $NBS$ in aqueous dimethyl sulfoxide $(DMSO)$?

What is the number of moles of $sp^2$ hybrid carbon atoms in one mole of $hexa-1,4-diyne$?

Which of the following hydrocarbons has the lowest dipole moment?