2011
The diagram above best illustrates the effect of decrease in
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2011 JAMB UTME Chemistry Past Questions
2011
The condition required for corrosion to take place is the presence of
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2011
CH4(g) + Cl2(g) → CH3 Cl(s) + HCl(g)The major factor that influence the rate of the reaction above is
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2011
The function of zinc electrode in a galvanic cells is that it
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2011
A chemical reaction which the hydration energy is greater than the lattice energy is referred to as
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2011
A few drops of concentrated HNO3 is added to an unknown solution and boiled for a while. If this produces a brown solution, the cation presents is likely to be
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2011
The effect of the presence of impurities such as carbon and sulphur on iron is that they
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2011
The impurities formed during the laboratory preparation of chlorine gas are removed by
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2011
Given that M is the mass of a substance deposited during electrolysis and Q is the quantity of electricity consumed, then Faraday's first law can be written as[Electrochemical equivalent]
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2011
MnO-4(aq) + Y + 5Fe2+(aq) → Mn2+(aq) + 5Fe2+(aq) + 4H2O(l)In the equation above, Y is
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2011
The constituents of baking powder that makes the dough to rise is
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2011
Bronze is preferred to copper in the making of medals because it
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2011
The property of concentrated H2SO4 that makes it suitable for preparing HNO3 is its
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2011
In the laboratory preparation of oxygen, dried oxygen is usually collected over
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2011
The bleaching action of chlorine gas is effective due to the presence of
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2011
At 25o and zymase as catalyst, C6H126 → 2C2H5OH + 2CO2 + energyThe reaction above represented by the equation above is useful in the production of
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2011
An organic compound has an empirical formula CH2O and vapour density of 45.What is the molecular formula?[C = 12, H = 1, O = 16]
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2011
The compound above exhibits
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2011
Which of the following compounds will undergo polymerization reaction?
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2011
The ability of carbon to form long chains is referred to as
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