This 3 sentence summary provides the key information from the given document: The document discusses the Cambridge International General Certificate of Secondary Education (IGCSE) Chemistry exam for paper 2. It includes the mark scheme and answer key for a 40 multiple choice question exam. The document notes that IGCSE is a registered trademark and this exam syllabus is approved for use in certain regions.

1. ® IGCSE is the registered trademark of Cambridge International Examinations.
This syllabus is approved for use in England, Wales and Northern Ireland as a Cambridge International Level 1/Level 2 Certificate.
This document consists of 2 printed pages.
© UCLES 2016 [Turn over
Cambridge International Examinations
Cambridge International General Certificate of Secondary Education
CHEMISTRY 0620/23
Paper 2 Multiple Choice (Extended) May/June 2016
MARK SCHEME
Maximum Mark: 40
Published
This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of the
examination. It shows the basis on which Examiners were instructed to award marks. It does not indicate the
details of the discussions that took place at an Examiners’ meeting before marking began, which would have
considered the acceptability of alternative answers.
Mark schemes should be read in conjunction with the question paper and the Principal Examiner Report for
Teachers.
Cambridge will not enter into discussions about these mark schemes.
Cambridge is publishing the mark schemes for the May/June 2016 series for most Cambridge IGCSE®
,
Cambridge International A and AS Level components and some Cambridge O Level components.

2. Page 2 Mark Scheme Syllabus Paper
Cambridge IGCSE – May/June 2016 0620 23
© Cambridge International Examinations 2016
Question
Number
Key
Question
Number
Key
1 B 21 A
2 C 22 A
3 B 23 A
4 B 24 D
5 C 25 C
6 C 26 A
7 C 27 C
8 B 28 D
9 A 29 D
10 A 30 A
11 D 31 B
12 B 32 C
13 A 33 B
14 D 34 D
15 A 35 D
16 B 36 B
17 C 37 C
18 D 38 D
19 D 39 B
20 D 40 C