true or false

(10) In the selective allylic oxidation of propylene, acrylonitrile is produced using Bi-Mo complex oxides as catalysts.

(11) Polyethylene is produced by the polymerization of ethylene (C2H4), but low-density polyethylene is produced using a Ziegler-Natta catalyst, and highly polymerized polyethylene is produced when the reaction is carried out at low pressure without a catalyst.

(12) Methane can be converted to oil via ethane or ethylene, or directly to benzene, but the reaction process via synthesis gas (CO+H2) is currently the main process.