2009
The acid used in electrolysis of water is dilute
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2009 JAMB UTME Chemistry Past Questions
2009
In the diagram above, which of the curves represents the evolution of oxygen with time in the equation 2KClO3(s) → 2KCl(s) + 3O2(g)?
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2009
Two equal bulbs, one containing ammonia and the other nitrogen are opened mouth-to-mouth to each other at room temperature. The entropy in the mixture of gases is likely to
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2009
C(s) + H2O(g) → H2(g) + CO2(g)ΔG for the reaction above at 1300k is -43KJ. At this temperature, the reaction is
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2009
What current will deposit 3.25g of zinc in 2hrs?[Zn = 65, F = 96500 mol-]
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2009
Which of the following metals is purified commercially by electrolysis?
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2009
Hydrogen sulphide gas can act as
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2009
The oxidation of ammonia in excess air produces
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2009
The equilibrium of an endothermic reaction which proceeds with an increase in volume can be shifted in the reverse direction by
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2009
CuO(s) + H2(g) ↔ Cu(s) + H2O(l)What is the effect of increasing the pressure on the equilibrium reaction above?
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2009
A catalyst increase the rate of a chemical reaction by providing a path that
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2009
Copper metal dissolves in concentrated trioxonitrate (V) acid with the resultant evolution of
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2009
which of the following metals will show the highest metallic character?
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2009
Which of the following allotrope of carbon is a constituent of a lead pencil?
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2009
The gas that is most useful in protecting humans against solar radiation is
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2009
The gasification of coke is used for the manufacturing of
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2009
Which of the following molecules has two other positional isomers?
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2009
A cracking process in petroleum refining can be represented by
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2009
One of the products of the thermal decomposition of sodium trioxonitrate (V) is
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2009
In the electrolytic extraction of aluminum, the function of the molten cryolite is to
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