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Combined Science Multiple Choice (Page 1)
Combined Science Chemistry Section Multiple Choice (Page 1) The diagram shows the electronic structure of an atom of a certain element, Z. Z will most likely form: A. Z+ ions B. Z2+ ions…
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Combined Science Questions (Page 1)
Mixed Revision Questions and Answers (Page 1) Question 1 Use the table below to answer the questions that follow: Substance pH A 1 B 5 C 7 D 9 E 14 a) Which…
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The importance of writing notes
The importance of writing notes When asked why they are not writing notes during a lecture, many students usually reply, "I have it all right here in my textbook." Many students find note-taking…
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How to answer physics O level paper 2
How to answer physics O level paper 2 I wrote this guide specifically for Zimsec O level Physics students but the information here can also be useful for other subjects like combined science,…
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How to pass O level Mathematics
How to pass O level Mathematics Time yourself using past exam papers. Exams are not much about how much you know but also about how fast you can answer correctly all that you…
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Metals Questions and Answers (Page 1)
Metals Questions and Answers (Page 1) Question 1 Potassium is a metal above magnesium in the reactivity series. How would you expect it to react with (a) oxygen (b) water? Solution 1 (a)…
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Organic Chemistry Questions (Page 1)
Organic Chemistry Questions and Answers (Page 1) Question 1 The hydrocarbon methane is the first member of the alkanes homologous series. a) Draw diagrams to show the first 3 members of the alkanes…
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Acids, Bases and Salts Questions (Page 1)
Acids, Bases and Salts Questions and Answers (Page 1) Question 1 Dry hydrogen chloride gas does not turn blue litmus paper red. It dissolves in water and toluene. Some properties of the two…
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O level Physics and Chemistry Exam Assessment
O level Physics and Chemistry Exam Assessment Many students find Physics and Chemistry exams tough and that is the reason why schools traditionally select only A classes only to do subjects such as…
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O level Chemistry Questions and Answers(6)
Question 1 (a) The diagram below shows how an organic compound, Q,is produced from ethene. (i) Name reagent x and compound P. (ii) Draw the displayed structural formula of Q. (iii) Give any…
