2011
Which of the following elements can conveniently be placed in two groups in the periodic table ?
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2011 WAEC SSCE Chemistry Past Questions
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2011
Chlorine, bromine and iodine belong to the same group and
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2011
Which of the following arrangements is in order of increasing metallic property?
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2011
What is the amount of magnesium that would contain 1.20 x 1024 particles? [Mg = 24, Avogadro's constant = 6.02 x 1023]
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2011
Consider the reaction represented by the following equation: xKMnO 4(aq) + ySO2(g) + zH2O(I) → K 2SO4(AQ) + 2MnSO4(aq) + 2H2SO x,y and z are respectively
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2011
The volume occupied by 17g of H2S at s.t.p. is [H = 1.00, S = 32.0, Molar volume = 22.4 dm3]
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2011
Which of the following statements about displacement reaction is correct?
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2011
In metallic colids, the forces of attraction are between the mobile valence electrons and
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2011
The equation P = \(\frac{K}{V}\) illustrates
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2011
Bubbling excess carbon (IV) oxide into calcium hydroxide solution results in the formation of
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2011
A gas that is collected by upward delivery is likely to be
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2011
Which of the following statements about a molar solution is correct?
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2011
The number of atoms in one mole of a substance is equal to the
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2011
When NH 4CI was dissolved in water, the container was cold to touch. This implies that
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2011
Which of the following statements about enthalpy of neutralization is correct? It
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2011
The colour of phenolphthalein indicator in alkaline solution at the end-point of an acid-base titration is
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2011
Which of the following equimolar solutions has the highest conductivity?
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2011
The initial volume of a gas at 300 K was 220 cm 3 Determine its temperature if the volume became 250 cm 3
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2011
What mass of copper would be formed when a current of 10.0 A is passed through a solution of CuSO4 for 1 hour? [Cu = 63.5; 1F = 96500C]
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2011
Consider the following reaction equation: X(g)+ Y(g) ⇌ XY(g); ∆H = + 220KJ mol-1 If the temperature of the system is increased, the
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