Chemistry · Oct / Nov 2023 · Paper 12 · Question 20

Information about three oxides, Q, R and T, is given. Q reacts with dilute sulfuric acid to form a salt and water. R reacts with both acids and bases to form a salt and water. T reacts with aqueous sodium hydroxide to form a salt and water. Using only this information, which row correctly classifies the three oxides?

1. Aacidic, amphoteric, basic
2. Bamphoteric, basic, acidic
3. Cbasic, acidic, amphoteric
4. Dbasic, amphoteric, acidic

As printed in the paper