2002
The atomic number of chlorine is 17. What is the number of electrons in a chloride ion?
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2002 WAEC SSCE Chemistry Past Questions
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2002
Determine the mass of sulphur (IV) oxide obtained when 91.0g of oxygen reacts completely with sulphur according to the following equation: S(s) + O2(g) → SO2(g) [S = 32; O = 16]
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2002
Calculate the mass of chlorine gas which occupies a volume of 1.12 dm3 a volume of 1.12 dm3 at s.t.p [Cl = 35.5, 1 mole og gas occupies 22.4 dm3 at s. t. p ]
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2002
Which of the following decreases when a given mass of gas is compressed to half its initial volume?
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2002
A major factor considered in selecting a suitable method for preparing a simple salt is its
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2002
What is the expression for the equilibrium constant (Kc) for the following reaction? N2(g) + O2(g) ⇌ 2NO(g)
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2002
Which of the following salt solutions will have a pH greater than 7?
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2002
Consider the following equation: Cr2O2-7(aq) + 14H+(aq) + 6e- → 2Cr3+(ag) + 7H2O(1). The oxidation number of chromium changes from
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2002
When alkynes are hydrogenated completely they produce compounds with the general molecular formula
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2002
Which of the following compounds can be represented by the molecular formula C2H6O?
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2002
Which of the following processes takes place during the production of margarine from vegetable oils?
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2002
When concentrated sodium chloride solution is electrolysed using inert electrodes, the products are
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2002
If two metallic ions of the same concentration migrate to a graphite cathode, the one that would be preferentially discharged is the one that has the
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2002
Which of the following statements about soapless detergents is correct? They
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2002
The reaction between ethene and chlorine to form 1, 2-dichloroethane is
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2002
The following compounds are hydrocarbons except
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2002
One of the methods used for combating air pollution is
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2002
The reaction of sucrose with dilute HCI produces
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