2013
Burette readings (initials and final) must be given to two decimal places. Volume of pipette used must also be recorded but no account experimental procedure is required. Al calculations must be done in your answer book.…
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2013 WAEC SSCE Chemistry Past Questions
2013
Credit will be given for strict adherence to the instructions, for observations precisely recorded, and for accurate inferences. AIl tests. observations and inferences must be clearly entered in your answer book, in ink,…
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2013
(a)i) How would an aqueous solution of iron (II) tetraoxosulphate (VI) be converted into an aqueous solution of magnesium tetraoxosulphate (VI)?(ii) Write a balanced equation for the reaction in (a)(i) above(b)(i) Why ar…
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2013
(a)(i) List two characteristics of homologous series.(ii) Consider the compound represented by the following formula: CH\(_3\)(CH\(_2\))\(_2\)CH\(_3\). I. Which homologous series does the compound belong? II. Write the s…
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2013
(a)(i) Explain briefly the term chemical industry.(ii) State three factors that should be considered in siting a chemical industry.(b)(i) Describe briefly twin is extracted from its ore.(ii) Give two uses of tin.(c)(i) N…
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2013
(a)(i) Define the term hygroscopic.(ii) Give two difference: between a physical change and a chemical change.(iii) Using the kinetic theory of gases, explain briefly the Charles' law.(b)(i) Arrange the following compound…
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2013
(a)(i) Define the term standard electrode potential.(ii) State three factors that affect the discharge of ions during electrolysis.(iii) State two functions of a salt bridge in an electrochemical cell.(b) Describe briefl…
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2013
(a)(i) Define each of the following terms: I. normal salt. II. acid salt.(ii) Tetraoxosulphate (VI) acid and sodium hydroxide react to produce salt and water. Write a balanced chemical equation fir the formation of: I. a…
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2013
(a)(i) What is the common name given to the group VII elements?(ii) Name the hydrides of the first two elements in group VII.(iii) State three chemical properties of group VII elements.(b) Copy and complete the following…
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2013
The formula of the compound formed between a trivalent metal, M and a divalent non-metal, Y is
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2013
The molecule which has a linear shape is
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2013
Which of the following instruments is used in detecting the presence of radiation?
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2013
In the periodic table all elements within the same group have the same
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2013
The element with electron configuration 1s2 2s2 2p 6 3s2 3p1 belongs to
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2013
Which of the following arrangements represents the correct order of electronic energy level?
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2013
An atom of an element X gains two electrons. The symbol of the ion formed is
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2013
Which of the following bond types is responsible for the high boiling point of water?
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2013
In which of the following series are the atoms arranged in order of increasing ionization energy?
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2013
In the periodic table, alkaline earth metals can be found in group
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2013
Which of the following statements about nuclear reaction is correct? The reaction
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