Chemistry
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Past Questions
Question 2801
neco 2001
a
Br>I>Cl>F
b
F>I>Cl>Br
c
F>Cl>Br>l
d
I>Br>Cl>F
e
Cl>Br>F>I
Question 2802
neco 2001
a
addition of hydrogen
b
loss of oxygen
c
decrease in oxidation number
d
loss of electrons
e
gain of elections.
Question 2803
neco 2001
a
has a dark colour
b
has a high carbon content
c
is a good absorbent
d
is crystalline.
e
is rich in phosphate content
Question 2805
neco 2001
a
blacker.
b
cheaper. .
c
more elastic
d
tougher
e
softer.
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