2012
A compound contains 40.0% C, 6.7% H and 53.3% O. If its relative molecular mass is 180, what is its molecular formula? Use relative atomic masses: C = 12, H = 1, O = 16.
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2012 JAMB UTME Chemistry Past Questions
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2012
Some carbohydrate formulas can be written as Cx(H2O)y. In which pair is x not equal to y for both carbohydrates? For starch, use its repeating-unit formula.
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2012
An example of oxidation - reduction enzyme is
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