O-LevelChemistryAcids, Bases & Salts5070/21 · May/June 2017 · Q14 Marks
Choose from the following oxides to answer the questions. calcium oxide carbon dioxide copper(II) oxide silicon dioxide sodium oxide sulfur dioxide sulfur trioxide zinc oxide Each oxide can be used once, more than once or not at all. Which oxide
- (a)has a giant covalent structure,[1]
- (b)reacts with both acids and alkalis,[1]
- (c)reacts with water to form a strong acid,[1]
- (d)contains a cation with a charge of +1?[1]
Mark scheme
Marking points from the official mark scheme (May/June 2017). The mark or mark type is shown in brackets.
- A1(a) Silicon dioxide (1)
- A1(b) Zinc oxide (1)
- A1(c) Sulfur trioxide (1)
- A1(d) Sodium oxide (1)
Write your answer and get it marked
On Oracle Prep you can write or photograph your own answer and have it marked by AI against this mark scheme, with feedback on what you missed.
Sign up free →