Statement (1) is correct: Fuel obtained from plastic waste through processes like pyrolysis often yields a complex mixture of hydrocarbons. The liquid product before extensive refining can have a lower octane rating compared to standard gasoline, although it can be upgraded. Statement (2) is incorrect: Octane number measures a fuel's resistance to knocking or detonation under compression. A higher octane number indicates greater resistance to detonation, allowing the fuel to withstand higher compression ratios before igniting spontaneously.