| Date | May 2009 | Marks available | 1 | Reference code | 09M.1.sl.TZ2.23 |
| Level | SL | Paper | 1 | Time zone | TZ2 |
| Command term | State | Question number | 23 | Adapted from | N/A |
Question
An example of a strong acid solution is perchloric acid, \({\text{HCl}}{{\text{O}}_{\text{4}}}\), in water. Which statement is correct for this solution?
A. \({\text{HCl}}{{\text{O}}_{\text{4}}}\) is completely dissociated in the solution.
B. \({\text{HCl}}{{\text{O}}_{\text{4}}}\) exists mainly as molecules in the solution.
C. The solution reacts only with strong bases.
D. The solution has a pH value greater than 7.
Markscheme
A
Examiners report
[N/A]
