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Difficult Problems in chemistry From post utme (UI 2006)
Chemistry
Chima Sunday (Tutor)
01-04-2016 15:34:00 +0000As rightly said that 'it is not over until its over' Note that the aim of this app is to see you celebrate your MATRICULATION, So in our own way in this room is to review some questions asked in some prominent schools that most people that attempted it failed it.
About 65% of student that attempted this questions failed it. Try it and proof that you are not an element in this set
Question 2 Which of the following gases will have the highest rate of diffusion under the same conditions (H = 1, C = 12, O = 16, S = 32, Cl = 35.5)
Option A O2
Option B C12
Option C HCl
Option D H2S
Question 11 Which of the following materials cannot be extracted from its ore by using carbon or carbon (II) oxide as the reducing agent?
Option A Cu
Option B Zn
Option C Al
Option D Pb
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