# Physical Sciences Grade 12 Paper 2 KZN March 2015 Memo

> Grade 12 Physical Sciences Paper 2 memorandum from the KZN March 2015, 12 pages. Read online or get the free PDF download, question paper linked when available.

- Page: https://www.hlayiso.com/library/phy-march-p2-qp-memo-2015-gr12/0f8435a3-d8e5-47d4-b615-1871ccac4ab5
- Updated: 2026-09-27
- Subject: Physical Sciences
- Grade: Grade 12
- Document type: Memorandum
- Year: 2015
- Exam period: KZN March
- Paper: 2
- Curriculum: CAPS
- Pages: 12

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## About this document

Physical Sciences · Grade 12 · KZN March · 2015. Memorandum, 12 pages. Read online or download the PDF.

Read it free online on the page above; download the PDF from there.

## Document text

Text extracted from the PDF. Layout, diagrams and tables may not survive extraction.

### Page 1

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Basic Education

KwaZulu-Natal Department of Education

REPUBLIC OF SOUTH AFRICA
ee ne ee,
i PHYSICAL SCIENCES P2: CHEMISTRY ;
" COMMON TEST "
/ 1 a
" MARCH 2015 x
Se eee eeeeee eee ee eaneenneseceseseeeeeneeeenene®

NATIONAL
SENIOR CERTIFICATE

MARKS: 50

TIME : hour

This question paper consists of 9 pages

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Physical Sciences / P2 2 Common Test March 2015

NSC

INSTRUCTIONS AND INFORMATION TO CANDIDATES

1.
2.
3.

This question paper consists of FIVE questions.

Answer ALL the questions in the ANSWER BOOK.

This question paper consists of TWO sections:

SECTIONA (8 marks)

SECTION B (42 marks)

Start EACH question on a NEW page in the ANSWER BOOK.

Number the answers correctly according to the numbering system used in this question
paper. )

Leave ONE line between two sub-questions, for example between QUESTION 2.1 and
QUESTION 2.2.

Give brief motivations, discussions, et cetera where required.

Write neatly and legibly.

Copyright Reserved Please turn over

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Physical Sciences / P2 3 Common Test March 2015
NSC

SECTION A
QUESTION 1: MULTIPLE-CHOICE
Four possible options are provided as answers to the following questions. Each question
has only ONE correct answer. Choose the answer and write ONLY the letter (A ~ D) next to
the question number (1.1 — 1.4) in the ANSWER BOOK.
1.1. Consider the reaction:

CH3CHCH2 + Hz -—> CH,CH2CH3

This reaction can be classified as ...

A. — hydration

B. substitution

C. dehydration

D. hydrogenation (2)
1.2 H H H

| | |
H-C—-C-—C—H

| I |

H H_ CH3

The name of the above compound is:

CJ A. propane
B. 3-methylpropane
Cc. butane
D. 1-methylpropane. (2)

4.3. Which one of the following statements concerning PROPANE is INCORRECT?

A. It has a higher boiling point than ethane.

B. Its general formula is C,Hen.

C. It is a saturated compound.

D. Its reaction with oxygen is strongly exothermic. (2)

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Physical Sciences / P2

1.4 Polymers are made of giant molecules composed of repeating units called

isomers.

A

B hydrocarbons,
C both AandB.
D

monomers.

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4
NSC

Common Test March 2015

TOTAL SECTION A:

(2)
18]
[8]
( )
(:
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Physical Sciences / P2 5 Gommon Test March 2016
NSC

SECTION B

QUESTION 2

The letters A to F in the table below represent organic compounds.

A B
HC=CCH2CHs CHsCH2CHCH3
oH
Cc D
CHs [e}
| crdcrt,
CH2 =C~CH2
E F
H H CH3CH2CH2CHCHs
-6-6~
4 4 n CH

2.1 Write down the IUPAC name of compound A.

2.2 Draw the structural formula for an isomer of B that is a tertiary alcohol.

2.3 In the above compounds, identify the alkene (write down ONLY the letter).

2.4 Write down the IUPAC name of compound of D.

2.5 Draw the structural formula for a functional isomer of compound D.
2.6 Write down the general formula for the group of compounds to which A
belongs.

27 Name the type of polymerisation that produces E,

2.8 Name the products formed from the combustion of A.

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(2)
(2)
(1)
(2)
(2)

(4)
(4)
(2)

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Physical Sciences / P2 6 Common Test March 2015
NSC
2.9 A student uses bromine water to distinguish between compounds C and F.

2.9.1

2.9.2

2.9.3

2.9.4

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She adds bromine water to each in two different test tubes. The test tubes

are labelled X and Y. She makes the following observations for each of
the test tubes:

X:  decolourises bromine water immediately.

Y:  decolourises bromine water only after placing the test tube in the
sunlight.

Which compound, C or F, is in test tube X?

Name the type of reaction taking place in test tube Y.
(Choose from: Addition , Substitution or Elimination)

Write down the structural formula of the organic product formed in test
tube Y.

Why would chlorine water NOT be suitable to conduct this investigation?

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(1)
(1)
(2)

(2)
[19]

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Physical Sciences / P2 7 Common Test March 2015
NSC
QUESTION 3
Esters are formed from the reaction of an alcohol and a carboxylic acid,
(@)
CHsCH2 CH2 C—O— CH2CH3

3.1. Write down the IUPAC name of the above ester. (2)
3.2 Write down the NAME of the:

3.2.1 carboxylic acid and the (1)

3.2.2 alcohol that is used in the synthesis of this ester. (1)
3.3 Name the catalyst that is used in this reaction. (1)
3.4 What is the NAME or FORMULA of the inorganic product that is formed

during this reaction? (1)
3.5 Draw the structure of the carboxylic acid which is an isomer of the above ester (2)
3.6 The polymerisation of ethene to produce polythene is represented by the

equation below:

nCH,= CH, — —[CH2~CHz],—-
3.6.1 Define the term macromolecule. (1)
3.6.2 Name ONE industrial use of polythene. oon

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Physical Sciences / P2 8 Common Test March 2016
NSC

QUESTION 4
Three. hydrocarbons (A, B and C) with a molecular formula CsHi2 are used to

investigate the effect of chain length on the boiling point of hydrocarbons.
The results obtained are given in the table below.

HYDROCARBON BOILING POINT (°C)
A 36
B 28
Cc 40
41 What is a hydrocarbon? (1)
42 Are these hydrocarbons saturated or unsaturated? Give a reason for your
answer. (2)
43 Write down a possible structural formula for B. (2)
44 Explain why hydrocarbon G has the lowest boiling point. In the explanation
refer to the MOLECULAR STRUCTURE of the compound,
INTERMOLECULAR FORCES and the ENERGY required. (3)
45 How will the vapour pressure of compound A compare to that of butan-1-ol?
(Write down. only HIGHER THAN or LOWER THAN or EQUAL TO), (1)

[9]

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Physical Sciences / P2 Common Test March 2015

9
NSC
QUESTION &

Consider the following two organic reactions:

Br
|
A: CH3CH,CHCH3 + NaOH (ethanol) heat,

Br
B: CHsCHAHOH, + NaOH cag) heat,
5.1 Write down the IUPAC name of the major organic product in reaction A. (2)
§.2 In terms of the types of reactions, how is reaction A differ from reaction B? (2)
IAI |
TOTAL SECTION B = [42]
GRAND TOTAL = [50]

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