Chemistry Paper

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UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS
International General Certificate of Secondary Education

0620/01

CHEMISTRY
Paper 1 Multiple Choice

May/June 2004
45 minutes
Additional Materials:

Multiple Choice Answer Sheet
Soft clean eraser
Soft pencil (type B or HB is recommended)

READ THESE INSTRUCTIONS FIRST
Write in soft pencil.
Do not use staples, paper clips, highlighters, glue or correction fluid. Write your name, Centre number and candidate number on the answer sheet in the spaces provided unless this has been done for you.

There are forty questions on this paper. Answer all questions. For each question there are four possible answers A, B, C, and D. Choose the one you consider correct and record your choice in soft pencil on the separate answer sheet. Read the instructions on the answer sheet very carefully.

Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any rough working should be done in this booklet.
A copy of the Periodic Table is printed on page 16.
You may use a calculator.

This document consists of 16 printed pages.
IB04 06_0620_01/3RP
 UCLES 2004

[Turn over

2
1

Some students are asked to describe differences between gases and liquids. Three of their suggestions are:
1

gas molecules are further apart;

2

gas molecules are smaller;

3

liquid molecules vibrate around fixed positions.

Which suggestions are correct?
A
2

B

1 only

C

2 only

3 only

D

1, 2 and 3

A coloured liquid vaporises easily at room temperature. Some of the liquid is placed at the bottom of a sealed gas jar.
Which diagram shows the appearance of the jar after several hours? A

B

C

D
coloured
vapour
coloured
vapour

coloured
liquid

3

coloured
vapour

Measurements are made on some pure water.
its boiling point, b.p.
its freezing point, f.p.
its pH
Sodium chloride is now dissolved in the water and the measurements repeated. Which measured values change?
b.p.

f.p.

pH

A







B







C







D







 UCLES 2004

0620/01/M/J/04

3
4

The diagram shows a chromatogram obtained from three sweets, X, Y and Z. red
yellow

yellow

red
yellow
red

red
sweet X

sweet Y

sweet Z

How many different red dyes are present in the sweets?
A
5

B

1

C

2

D

3

4

Which properties does a Group VI element have?
forms covalent
bonds

forms ionic
bonds

conducts electricity
when solid

A







B







C







D







 UCLES 2004

0620/01/M/J/04

[Turn over

4
6

The electronic structure of an element is shown.
ee
ee
ee
e
e

key
e
e

e

electron
nucleus

ee

Which diagram shows the electronic structure of another element in the same group in the Periodic Table?
A

B

ee

ee
ee
ee

ee
e
e

e
e

ee

ee
e

C

D
e

ee

ee
e

ee
e
e

e
e
ee

7

In the diagrams, circles of different sizes represent atoms of different elements. Which diagram can represent hydrogen chloride gas?
A

 UCLES 2004

B

C

0620/01/M/J/04

D

5
8

How many electrons are shared between the atoms in a molecule of methane, CH4, and in a molecule of water, H2O?
methane
A

4

2

B

4

4

C

8

2

D
9

water

8

4

The oxide Pb3O4 reacts with dilute nitric acid to form lead(II) nitrate, lead(IV) oxide and another product.
What is the equation for this reaction?
A

Pb3O4

+ 4HNO3 → 2Pb(NO3)2 + PbO2

+ 2H2O
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