DP Chemistry (first assessment 2025)
Question 19N.1A.SL.TZ0.37
Date | November 2019 | Marks available | [Maximum mark: 1] | Reference code | 19N.1A.SL.TZ0.37 |
Level | SL | Paper | 1A | Time zone | TZ0 |
Command term | Identify | Question number | 37 | Adapted from | N/A |
37.
[Maximum mark: 1]
19N.1A.SL.TZ0.37
Which can be reduced to an aldehyde?
A. Butanone
B. Butan-1-ol
C. Butanoic acid
D. Butan-2-ol
[1]
Markscheme
C
Syllabus sections
Reactivity 3. What are the mechanisms of chemical change? » Reactivity 3.2—Electron transfer reactions » Reactivity 3.2.10—Functional groups in organic compounds may undergo reduction. Deduce equations to show reduction of carboxylic acids to primary alcohols via the aldehyde, and reduction of ketones to secondary alcohols.