# Physical Sciences Grade 11 P2 March Test 2017 Paper & Memo

> Grade 11 Physical Sciences Paper 2 question paper and memo from the March Test 2017, 10 pages. Read online or get the free PDF download.

- Page: https://www.hlayiso.com/library/phy-sc-p2-march-qp-memo/cb10ad8c-a684-44ac-ba88-2ebdcb2acdd3
- Updated: 2026-09-27
- Subject: Physical Sciences
- Grade: Grade 11
- Document type: Question paper and memo
- Year: 2017
- Exam period: March Test
- Paper: 2
- Curriculum: CAPS
- Pages: 10

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## About this document

Physical Sciences · Grade 11 · March Test · 2017. Question paper and memorandum, 10 pages. Read online or download the PDF.

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

## Document text

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Physical Sciences P2 NSC Common Test March 2017
2

INSTRUCTIONS AND INFORMATION

1, This question paper consists of FOUR questions. Answer ALL the questions in the
ANSWER BOOK.

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

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

4. You may use a non-programmable calculator.

5. You may use appropriate mathematical instruments.

6. YOU ARE ADVISED TO USE THE ATTACHED DATA SHEET.

7. Show ALL formulae and substitutions in ALL calculations.

8. Round off your FINAL numerical answers to a minimum to TWO decimal places.
9. Give brief motivations, discussions, et cetera where required.

10. Write neatly and legibly.

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Physical Sciences P2 NSC

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3

QUESTION 1: MULTIPLE CHOICE

Four options are provided as possible answers to the following questions.

Each question has only ONE correct answer. Write down only the letter (A — D)
next to the question number (1.1 - 1.4) in the answer book, for example 1.1 D.

1.1. Which one of the following diatomic molecules is NOT possible to form?

0 0Oo 0 >

Cla
He2
O2
No

1.2 The type of chemical bond between atoms whereby valence electrons move
freely through the lattice structure is called a/ an.....

A
B
Cc
D

lonic Bond
Dipole-dipole
Metallic Bond

Dative covalent bond

1.3. | The shape of the PCls molecule is...

A
B
Cc
D

Pentagonal
Tetrahedral

Trigonal planar
Trigonal bipyramidal

1.4 Hydrogen bonds and Van der Waals forces are similar in that both

A
B
c
D

Are due to permanent dipoles,
Are stronger than covalent bonds
Are attractive forces between molecules

Originate through the sharing of electrons between charges.

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Common Test March 2017

(2)

(2)

(2)

(2)
[8]

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Physical Sciences P2
QUESTION 2

2.1 The following diagram represents the bonding that takes place in a molecule.
The electronegativity difference between element X and oxygen is 1.0.
2.1.1 Define the term Electronegativity.

2.1.2 Which group in the periodic table does element X belong to?
Give a reason.

2.1.3 Identify element X by means of a calculation.

2.1.4 Is the molecule XQ, polar or non-polar? Explain fully.

2.2 Consider the following substances and answer questions set:

CH, MgCea5) HF . ‘Nace (aq) H;0°

2.2.1 Which substance is ionic?

2.2.2 Name the type of Van de Waals forces in NaCtf.(aq)

2.2.3. Which of the above substances is most likely to dissolve in chloroform?
2.2.4. \dentify the substance with a dative covalent bond.

2.2.5 Which compound has London forces between its molecules?

2.2.6, \dentify the substance with the lowest melting point.

2.7 Draw Lewis dot structures for the following:

2.7.1 NH3
2.7.2 HNOs.

Common Test: March 2017

(3)

(1)
(1)
(1)
(4)

(1)

(2)
(3)
[21]

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Physical Sciences P2 NSC Common Test March 2017
5

QUESTION 3

The graph below shows the changes in potential energy that take place when a
hydrogen (H) atom approaches a chlorine (C2) atom. .

A
400 —-

300 T) A
200—-|

100

0 ; >
Cc

Distance between nuclei in pm

too

-300 B

Potential Energy in kj.mol™

-400 4

3.1 Define bond length. (2)

3.2. From the graph, write down the:

3.2.1. Energy, in kJ-mol, needed to break the H-Cl bond. (1)

3.2.2 Name of the potential energy at B. (1)

3.2.3 Explain why the potential energy decreases from C to B. (3)

3.2.4. At which point (A, B or C) are the repulsive forces the greatest? (1)
3.3. Which molecule has a greater bond length, HC2 or HF?

Give a reason for the answer. (OI

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Physical Sciences P2 NSC

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Common Test March 2017
6

QUESTION 4

4.

Study the following graph of the boiling points of the hydrides of the
group VI elements:

100
g
o
ao
oD
& -12
. Oo
Oo 42
Relative molar mass (g.mol")
4.1. Define the term Boiling point. ; (2)
4.2 Explain, why the boiling point increase from H2S to H2Te? (3)
4.3 {tis observed that boiling point of water does not follow the same trend as that of
the other hydrides, :
FULLY explain this deviation. (4)
4.4, Which hydride has the highest vapour pressure?
Give a reason. (2)
[11]
TOTAL MARKS: = [50]
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