JEE Main levelOne or more correct optionsDifficulty 2 of 3ev031
Which of the following statements about carbon monoxide are correct?
AIt is a neutral oxide.
BIt is the main cause of acid rain.
CIt is produced by incomplete combustion of carbon containing fuels.
DIt is colourless and odourless.
Answer: A, C, D
CO forms when fuel burns in limited oxygen, is colourless and odourless (so hard to detect), and does not react with water to give an acid. Acid rain is caused by oxides of sulphur and nitrogen, so the last statement is false.