Page 106 - CAPE Green Engineering Syllabus 2016.docx_Neat

-15- 02165020/CAPE/KMS 2015 SPEC

GREEN ENGINEERING
UNIT 1 - PAPER 02
KEY AND MARK SCHEME

Question 6. (continued)

S.O Suggested Response Mark Marks
Allocation KC AK PS

1:3:3 (d) The addition of a simple salt allows oil 1 2
separation 1

It also allows oil recovery and reuse.

1:3:3 (e) The two components are: 24
2
1. Ethylenediaminetetraacetic acid
(EDTA) C10H16N2O8

2. Butyl carbitol C4H9(OCH2CH2)2OH

TOTAL 20 MARKS 6 14 0