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The diagram below shows the apparatus that can be used to electrolyze acidified water obtain hydrogen and oxygen gases. Study it and answer the questions that follow.
i) Identify the electrode at which oxidation takes place.
ii) Give a reason why it is necessary to acidify the water.
iii) Explain why hydrochloric acid is not used to acidify the water.
Date posted:
May 15, 2017
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State the composition of the National Assembly in Kenya.
Date posted:
May 15, 2017
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Discuss factors that promote free and fair elections
Date posted:
May 15, 2017
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Outline factors that undermine free and fair elections.
Date posted:
May 15, 2017
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Outline reasons why elections are important in Kenya
Date posted:
May 15, 2017
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Discuss role of Tom Mboya in politics and struggle for independence.
Date posted:
May 15, 2017
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State methods used by Africans to fight the Apartheid regime in South Africa.
Date posted:
May 15, 2017
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State two advantages of natural selection to organisms.
Date posted:
May 13, 2017
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Give a reason why it is only mutation in genes of gametes that can influence evolution.
Date posted:
May 13, 2017
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State two characteristics that researchers select in breeding programme.
Date posted:
May 13, 2017
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In a breeding experiment, plants with red flowers were crossed. They produced 123 plants with red flowers and 41 with white flowers
(a) Identify the recessive character. give a reason
(b) What was the genotype of the plants that gave rise to the plants with red and white flowers?
(c) If the white flowers were selfed, what would be the genotypes of their offspring?
Date posted:
May 13, 2017
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Discuss factors which prompted the growth of nationalism in Ghana in 1940's
Date posted:
May 12, 2017
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State internal factors that promoted African Nationalism
Date posted:
May 12, 2017
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State three factors that contribute to the deceleration phase in the population phase in the population curve of an organism.
Date posted:
May 12, 2017
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State three aspects that can be used to estimate growth in seedlings -
Date posted:
May 12, 2017
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In an experiment the shoot tip of a young tomato plant was decapitated as shown in the diagram below.
(a) State the expected results after 2 weeks.
(b) Give a reason for your answer in (a) above
Date posted:
May 12, 2017
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Name a growth inhibitor in seeds.
Date posted:
May 12, 2017
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The diagram below represents a set up to investigate the conditions necessary for seed germination.
The set up was left for 7 days.
(a) What conditions were being investigated in the experiment?
(b) State three reasons for soaking seeds in set ups A and B.
(c) What were the expected results after seven days
Date posted:
May 12, 2017
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The diagram below represents human foetus in a uterus.
(a) Name the part labeled S.
(b)(i) Name the types of blood vessels found in the structures labeled Q.
(ii) State the differences in composition of blood found in the vessels named in (b) above
(c) Name two features that enable the structure labelled P carry out its function
(d) State the role of the part labeled R.
Date posted:
May 12, 2017
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Discuss the results of the Lennox Boyd Constitution
Date posted:
May 12, 2017
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State the results of Lyttelton constitutional recommendations .
Date posted:
May 12, 2017
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What were the Demands of the African Elected Members Organisation (AEMO)?
Date posted:
May 12, 2017
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Explain five factors which influenced constitutional changes in Kenya after World War II
Date posted:
May 12, 2017
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Outline factors which undermined African nationalist activities in Kenya between 1939-1963
Date posted:
May 12, 2017
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Discuss problems encountered by the trade unions during the colonial period.
Date posted:
May 12, 2017
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What roles did trade unions play during the colonial period?
Date posted:
May 11, 2017
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Discuss the reasons why there were no trade unions before 1914 in Kenya.
Date posted:
May 11, 2017
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Outline problems faced by Kenya African Democratic Union(KADU)
Date posted:
May 11, 2017
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State the reasons why Kenya African Democratic Union (KADU) was formed
Date posted:
May 11, 2017
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Discuss the challenges faced by Kenya African National Union (KANU)
Date posted:
May 11, 2017