Chemistry 5070/12 — May/June 2011
Cambridge O-Level · Multiple Choice · answer key with instant marking and worked solutions
40
questions
40
marks
60
minutes
Topics Organic Chemistry · Acids, Bases and Salts · Atoms, Elements and Compounds · Metals · Chemical Reactions · Experimental Techniques and Chemical Analysis · +6 more
Tap an option under each question to check it — your score builds as you go.
Q11MStates of MatterFree sample
A drop of liquid bromine is placed in the bottom of a gas jar. Brown fumes of bromine vapour slowly spread through the covered gas jar.
Why does this happen?
Options
A Bromine vapour is less dense than air.
B Bromine molecules and the molecules in air are always moving around.
C Bromine molecules are smaller than the molecules in air.
D Bromine molecules move faster than the molecules in air.
The rest of this paper
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