DP Chemistry (first assessment 2025)
Question 19N.1A.HL.TZ0.36
| Date | November 2019 | Marks available | [Maximum mark: 1] | Reference code | 19N.1A.HL.TZ0.36 |
| Level | HL | Paper | 1A | Time zone | TZ0 |
| Command term | Deduce, State | Question number | 36 | Adapted from | N/A |
36.
[Maximum mark: 1]
19N.1A.HL.TZ0.36
In which compound is the halogen substituted the most rapidly by aqueous hydroxide ions?
A. (CH3)3CCl
B. (CH3)3CI
C. CH3CH2CH2CH2Cl
D. CH3CH2CH2CH2I
[1]
Markscheme
B
Syllabus sections
Reactivity 3. What are the mechanisms of chemical change? » Reactivity 3.4—Electron-pair sharing reactions » Reactivity 3.4.10—The rate of the substitution reactions is influenced by the identity of the leaving group. Predict and explain the relative rates of the substitution reactions for different halogenoalkanes.