write true or false if false write the correct statement

11. Syngas is a mixture of carbon monoxide and hydrogen. H2 over CO goes from 2 to 3/1. ( ) 12 A catalyst should be used because large quantities of methane are cleaved at 1300C in the vapor conversion process to get syngas. ( ) 13 Hazards of carbon deposit: blocking the micro-pores, Influence heat transfer,increases the bed resistance.( ) 14.More than half of natural gas in China is used to make nitrogen fertilizer. ( ) 15, ammonia synthesis catalyst is -Fe. ()