Cambridge International Examinations Cambridge ...

*4319041575*

Cambridge International Examinations Cambridge International General Certificate of Secondary Education

CHEMISTRY Paper 1 Multiple Choice

Additional Materials:

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

0620/11 May/June 2015

45 Minutes

READ THESE INSTRUCTIONS FIRST

Write in soft pencil. Do not use staples, paper clips, 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. DO NOT WRITE IN ANY BARCODES.

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. Electronic calculators may be used.

The syllabus is approved for use in England, Wales and Northern Ireland as a Cambridge International Level1/Level 2 Certificate.

This document consists of 16 printed pages.

IB15 06_0620_11/3RP ? UCLES 2015

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1 The changes that occur when a substance changes state are shown below.

W

X

solid

liquid

gas

Z

Y

Which process, W, X, Y or Z, is occurring in the following four situations?

1 Butter melts on a warm day. 2 Water condenses on a cold surface. 3 The volume of liquid ethanol in an open beaker reduces. 4 Ice forms inside a freezer.

1

2

3

4

A

W

X

Y

Z

B

W

Y

X

Z

C

X

Y

Z

W

D

X

Z

Y

W

2 A student uses the apparatus shown in the diagram below to measure the volume of carbon dioxide gas made when different masses of marble chips are added to 25 cm3 of dilute hydrochloric acid.

gas syringe

bung

marble chips

25 cm3 dilute hydrochloric acid

Which other items of apparatus are needed? A funnel and balance B funnel and stopwatch C measuring cylinder and balance D measuring cylinder and stopwatch

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3 Atoms contain electrons, neutrons and protons. What is the definition of nucleon number? A the number of neutrons in the nucleus of an atom B the number of protons in the nucleus of an atom C the total number of neutrons and protons in the nucleus of an atom D the total number of particles in an atom

4 The diagram shows the atomic structure of an element X.

e

e

nn

p

n

p p

npn

key p proton e electron n neutron

e

e

What is X? A aluminium B beryllium C boron D fluorine

5 Which statements comparing the properties of electrons, neutrons and protons are correct?

neutrons and protons are both heavier than electrons

A

B

C

D

only electrons and neutrons are charged

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6 Rescuers are drilling through fallen rock in order to rescue some men trapped in a cave. The drill needs lubricating from time to time.

The following statements were made about the materials used for the drill tip and the lubricant and the reasons for their use.

1 Diamond was used for the drill tip as it does not conduct electricity. 2 Diamond was used for the drill tip as it is very hard. 3 Graphite was used as the lubricant as it conducts electricity. 4 Graphite was used as the lubricant as it is soft and flaky.

Which statements are correct?

A 1 and 3

B 1 and 4

C 2 and 3

D 2 and 4

7 In which compounds are pairs of electrons shared between atoms?

1 methane 2 lead bromide 3 sodium chloride

A 1 only

B 2 only

C 1 and 3

D 1, 2 and 3

8 What is the relative formula mass, Mr, of CaCO3?

A 50

B 68

C 100

D 204

9 Copper and hydrogen can each be formed by electrolysis. At which electrodes are these elements formed?

copper

A

anode

B

anode

C

cathode

D

cathode

hydrogen anode cathode anode cathode

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10 The diagram shows a failed attempt to copper-plate a pan.

3 V

?

+

copper cathode

pan

copper sulfate solution

Which action will plate the pan with copper? A cooling the copper sulfate solution in an ice bath B heating the copper sulfate solution to boiling point C increasing the voltage from 3 V to 6 V D making the pan the cathode and the copper the anode

? UCLES 2015

0620/11/M/J/15

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