The answer is C2H2 because an alkyne compound consists of a series of unsaturated hydrocarbons with a triple bond.
True The positive electric charge of a proton is equal in magnitude to the negative charge of an electron; therefore, the net electric charge of an ion is equal to its number of protons minus its number of electrons. Ions are highly reactive species.
It's difficult to write it down, but I'll attach you a good example of hydroboration of indene. I hope you'll find it helpful.