2001
(a) If you were provided with anhydrous Na\(_2\)CO\(_3\), spatula and stirrer;(i) list three other materials you would require to prepare a standard solution of Na\(_2\)CO\(_3\)(ii) state what you would observe on adding…
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2001 WAEC SSCE Chemistry Past Questions
2001
Credit will be given for strict adherence to instructions, for observations precisely recorded, and for accurate inferences. All tests, observations, and inferences must be clearly entered in your answer book, in ink, at…
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2001
All your burette readings (initial and final), as well as the size of your pipette, must be recorded but on no account of experiment procedure is required. All calculations must be done in your answer book.A is mol dm HC…
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2001
(a) Describe briefly a suitable procedure for preparing a pure sample of MgSO\(_4\) starting from MgO.(b)(i) Mention two sources of water pollution.(ii) Explain why the sample of air collected in the process of boiling w…
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2001
(a) List two substances that can be used in the laboratory to(i) dry hydrogen;(ii) remove carbon (IV) oxide from a sample of air;(iii) convert hot copper (II) oxide to copper;(iv) prepare zinc chloride by the action of d…
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2001
(a)(i) State three characteristics of a homologous series.(ii) Give the name and structural formula of the second member of the alkyne series.(iii) Write an equation to represent the combustion of ethane in excess oxygen…
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2001
(a)(i) Draw and label a simple cell for the electrolytic purification of copper.(ii) Write can equation for the reaction at each electrode in (a)(i) above.(iii) State with reason whether the Daniell cell is an electrolyt…
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2001
(a)(i) Explain what is meant by acid anhydride and give one example(ii) State three chemical properties of hydrochloric acid.(b) Explain each of the following observations:(i) Tetraoxosulphate (VI) acid can form two type…
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2001
(a) State three characteristic properties of(i) electrovalent compounds;(ii) alpha particles(iii) catalysts(b)(i) Write the electronic configuration of silicon (atomic number 14) and state the group to which it belongs i…
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2001
The maximum number of electrons that can accommodated in the shell having the principal quantum number 3 is
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2001
What is responsible for metallic bonding?
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2001
The presence of unpaired electrons in an atom of a transition metal gives rise to
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2001
The atom of an element X combines with aluminium (13AI)?
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2001
Elements which belong to the same group in the Periodic Table are characterized by
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2001
P Total = F1 + P2 + P 3 + .........Pn' where P Total is the pressure of a mixture of gasses. The equation above is an expression of
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2001
Which of the following statements about ideal gases is/are correct? 1. The cohesive forces between their particles are negligible ll. The have no definite volume but occupy the volume of their containers III. They are no…
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2001
Which of the following features of a human skeleton can be determined by carbon-dating?
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2001
A sheet of paper is placed in the path of a beam from a radioactive source. The emissions that pass through the paper consist of
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2001
Which of the following compounds is covalent?
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2001
A gas was evolved when a sample of gastric juice reacted with sodium trioxocarbonate (IV) . The gas evolved was
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