Question

When natural gas is burned, the production of which gas shows that incomplete combustion is occurring?

water vapor
oxygen
carbon dioxide
carbon monoxide

Answer 1

any ideas?

Answer 2

if we burn hydrogen in plenty of air water vapour is produced

if we burn carbon in plenty of air then carbon dioxide is produced.

Answer 3

so water vapor

Answer 4

- burning adds oxygen to the elements

Answer 5

No water vapour is obtained in excess of air - this means COMPLETE combustion

Answer 6

carbon dioxide