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Difficult Problems in chemistry From post utme (Unilorin 2007)
Chemistry
Chima Sunday (Tutor)
04-04-2016 16:56:00 +0000About 80% that attempted these questions got it wrong, try and see if you can be able to solve it.
Question 7 The relative strengths of weak acids can be seen by a comparison of their.
Option A pH value.
Option B dissociation constants.
Option C hydrogen ion concentrations.
Option D molarities .
.
Question 3 What are the oxidation numbers of manganese in the anions Mn02 and Mn04?.
Option A +7 & +6.
Option B +2 & +2.
Option C +4 & +4.
Option D +2 & +6.
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