DP Chemistry (last assessment 2024)
Question 18N.3.sl.TZ0.2c.ii
| Date | November 2018 | Marks available | [Maximum mark: 1] | Reference code | 18N.3.sl.TZ0.2c.ii |
| Level | sl | Paper | 3 | Time zone | TZ0 |
| Command term | Identify | Question number | c.ii | Adapted from | N/A |
c.ii.
[Maximum mark: 1]
18N.3.sl.TZ0.2c.ii
One way of classifying materials is based on the type of bonding present.
One reaction to convert cyclohexanone to caprolactam using concentrated sulfuric acid as a catalyst is shown.
(c.ii)
Identify another advantage of using a zeolite instead of concentrated sulfuric acid.
[1]
Markscheme
does not require corrosive acid/«concentrated» sulfuric acid/H2SO4
OR
zeolite can be recycled «more easily»
OR
product can be «more» easily separated from a zeolite «than from sulfuric acid»
OR
minimal/less impact on environment
OR
synthesis of specific isomers as products ✔
