Download this complete,fully solved and updated actual exam for CCEA AS1 Chemistry - Halogens
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Course
CCEA
Institution
Oxford University (OX)
What are the 4 halogens we study?
Fluorine, chlorine, bromine and iodine
Colour and state of fluorine at r.t.p
Yellow gas
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AS1 Chemistry -
Halogens
What are the 4 halogens we study? - answer
Fluorine, chlorine, bromine and iodine
Colour and state of fluorine at r.t.p - answer
Yellow gas
, Colour and state of chlorine at r.t.p - answer
Yellow-green gas
Colour and state of bromine at r.t.p - answer
Red-brown liquid, with a red-brown vapour
forming when heated
Colour and state of iodine at r.t.p - answer
Grey-black solid, with a purple vapour forming
when heated
Why does the boiling/melting/state change as
the halogens descend? - answer More
electrons so increased V.D.W forces in the
molecule
Why does the atomic radius increase/first
ionisation energy decrease/electronegativity
decrease as the halogens descend? - answer
The outer electrons are further from the
nucleus
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