Element X produces a pollutant oxide Y. Y may then be oxidised further to Z. Two students said the following. Student P: “The molecule of Y has lone pairs of electrons.” Student Q: “From Y to Z, the oxidation number of X rises by 1.” X could be carbon or nitrogen or sulfur. Which student(s) gave a correct statement?
- AP only
- BQ only
- Cboth P and Q
- Dneither P nor Q