| Date | May 2015 | Marks available | 1 | Reference code | 15M.1.hl.TZ2.17 |
| Level | HL | Paper | 1 | Time zone | TZ2 |
| Command term | Question number | 17 | Adapted from | N/A |
Question
What is the correct order for increasing lattice enthalpy?
A. \({\text{MgO}} < {\text{MgC}}{{\text{l}}_{\text{2}}} < {\text{NaCl}} < {\text{CsCl}}\)
B. \({\text{CsCl}} < {\text{NaCl}} < {\text{MgC}}{{\text{l}}_{\text{2}}} < {\text{MgO}}\)
C. \({\text{NaCl}} < {\text{CsCl}} < {\text{MgO}} < {\text{MgC}}{{\text{l}}_{\text{2}}}\)
D. \({\text{NaCl}} < {\text{CsCl}} < {\text{MgC}}{{\text{l}}_{\text{2}}} < {\text{MgO}}\)
Markscheme
B
Examiners report
[N/A]
