DP Chemistry (first assessment 2025)
Question EXM.2.HL.TZ0.6
| Date | May Example question | Marks available | [Maximum mark: 1] | Reference code | EXM.2.HL.TZ0.6 |
| Level | HL | Paper | 2 | Time zone | TZ0 |
| Command term | State | Question number | 6 | Adapted from | N/A |
6.
[Maximum mark: 1]
EXM.2.HL.TZ0.6
Bromobenzene, C6H5Br, can be formed by the reaction of benzene, C6H6 and bromine, Br2 in presence of the catalyst, FeBr3.
State the name of the mechanism of the reaction.
[1]
Markscheme
electrophilic substitution ✓
Syllabus sections
Reactivity 3. What are the mechanisms of chemical change? » Reactivity 3.4—Electron-pair sharing reactions » Reactivity 3.4.13—Electrophilic substitution reactions include the reactions of benzene with electrophiles. Describe and explain the mechanism of the reaction between benzene and a charged electrophile, E+.