1999
The solubility product of Cu(IO3)2 is 1.08 * 10-7. Assuming that neither ions react appreciable with water to form H+ and OH-, what is the solubility of this salt?
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1999 JAMB UTME Chemistry Past Questions
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1999
The solution with the lowest pH value is
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1999
Which of the following statement is true of the electrochemical series?
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1999
RS(aq) + HF(aq) → RF(s) + HS(aq)ΔH = -65.7 kj mol(-1). From the equation above, it can be deduced that
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1999
When a current I was passed through an electrolyte solution for 40 minutes, a mass X g of a univalent metal was deposited at the cathode. What mass of the metal will be deposited when a current 2I is passed through the s…
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1999
X + Y → Z. The rate equation for the chemical reaction above is ((-Δ[x])/Δt) = K[X]2[Y].The overall order of the reaction is
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1999
What quantity of electricity will liberate 0.125 mole of oxygen molecules during the electrolysis of dilute sodium chloride solution?[ F = 96 5000 C mol-1 ]
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1999
Hydrogen is used in oxy-hydrogen flames for melting metals because it
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1999
A pair of compounds that can be used to generate a gas which has physiological effect on human beings is
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1999
The salt that reacts with dilute hydrochloric acid to produce a pungent smelling gas which decolourizes acidified purple potassium tetraoxomanganate (VII) solution is
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1999
Chlorine, bromine and iodine resemble one another in that they
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1999
The gas that will form a white precipitate with acidified silver trioxonitrate (v) is
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1999
The hydrocarbon that burns in air with a sooty flame is
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1999
Which of the following metals is passive to concentrated trioxonitrate (V) acid?
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1999
A metal that can be extracted from cassitertite is
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1999
The pair of metals in the reactivity series that are usually extracted by the electrolysis of their ores is
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1999
What properties of duralumin make it more useful than its constituent metals?
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1999
An organic compound that does not undergo a reaction with both hydrogen cyanide and hydroxylamine can be
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1999
POlyvinyl chloride is used to produce
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1999
When excess ethanol is heated to 145oC in the presence of concentrated H2SO4, the product is
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