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State six ways in which rainmakers acquire their skills.
Date posted:
April 1, 2019
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How did God prepare Jeremiah for his future task at the time of his call?
Date posted:
April 1, 2019
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Explain five challenges that Christians face in their fight against corruption in society today.
Date posted:
April 1, 2019
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Give five reasons that force some people to leave their country today.
Date posted:
April 1, 2019
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Explain three factors that hinder the development of solar energy.
Date posted:
April 1, 2019
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The diagram below shows an investigation on a property of ammonia gas.
(a) The platinum wire is observed to glow. Explain the cause of that observation.
(b) State the observations made when the rubber bang is removed.
Date posted:
April 1, 2019
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The molar masses of gases W and X are 16.0 and 44.0 respectively. If the rate of diffusion of W through porous material is 12cm3s-1. Calculate the rate of diffusion of X through the same material.
Date posted:
April 1, 2019
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Name two major lake ports in Kenya along lake Victoria other than Kisumu
Date posted:
April 1, 2019
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Suppose you were to carry out a field study of rocks within the school environment.
(i) Name two secondary sources of data you would use to prepare for the field study.
(ii) State three problems you are likely to face during the field study.
Date posted:
April 1, 2019
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List three features associated with inland drainage basins in arid areas.
Date posted:
April 1, 2019
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Using well labeled diagrams describe how a yardang is formed.
Date posted:
April 1, 2019
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The lattice energy of sodium bromide and hydration energies of sodium and bromide ions are:- 733, 406 and 335kJ/mol respectively.
(i) Complete the energy cycle diagram below by inserting the values of changeH1, changeH2 and changeH3.
(ii) Determine the molar heat of solution of solid sodium bromide.
Date posted:
April 1, 2019
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Give the dates in the year when regions at the Arctic and Antarctic circles experience the longest hours of darkness.
Date posted:
April 1, 2019
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Using dots (.) and crosses (x), show bonding in:-Sodium oxide (Na = 11; O = 8 )
Date posted:
April 1, 2019
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Using dots (.) and crosses (x), show bonding in:The compound formed when nitrogen reacts with fluorine. (F = 9, N = 7)
Date posted:
April 1, 2019
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20.0cm3 of a solution containing 4gm per litre of sodium hydroxide was neutralized by
8.0cm3 of dilute sulphuric acid. Calculate the concentration of sulphuric acid in moles per litre.( Na = 23.0; O = 16.0; H = 1.0 )
Date posted:
April 1, 2019
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The diagram below represents a paper chromatogram for three brands of juices suspected to contain banned food colourings by the Kenya Bureau of Standards.
The results showed the presence of banned food colourings in L and M only. On the same diagram
(a) Circle the spots which show the banned food colourings.
(b) Show the solvent front.
(c ) Name one possible solvent that can be used in this experiment / research.
Date posted:
April 1, 2019
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The diagram below represents the extraction of sulphur by frasch process in Louisiana U.S.A.
(a) Name the substance that passes through tube:-
I
II
(b) What is the purpose of hot compressed air in this process ?
Date posted:
April 1, 2019
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How does the human eye obtain nutrients
Date posted:
April 1, 2019
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Name the features that increases the surface area of the small intestines.
Date posted:
April 1, 2019
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The diagram below shows a vertical section through a flower.
(a) Name the parts marked X and Y.
(b) Suggest the agent of pollination for the flower.
(c) Give a reason for your answer in (b) above.
Date posted:
April 1, 2019
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Give the differences between esterification and neutralisation.
Date posted:
April 1, 2019
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Explain five reasons why a producer would prefer to use radio than newspapers to advertise
his products.
Date posted:
April 1, 2019
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The table below gives elements represented by letters U V W X Y Z and their atomic numbers.
Use the information to answer the questions below.
(a) In which period do these elements belong ? Give a reason.
(b) How does the atomic radius of W and Y compare ? Explain.
(c ) Give the formula of the compound that could be formed between V and X.
(d) What type of bonding will be present in a compound formed between V and Z. Explain.
(e) Arrange the species U, U- and U+ in increasing order of size.
(f) Which of the ions Y2+ and Y2- is the most stable ? Explain.
(g) Give the formula of
(i) An acidic oxide formed when one of the elements in the table is heated in air.
(ii) A basic oxide formed when one of the elements in the table is heated in air.
Date posted:
April 1, 2019
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State four disadvantages of using cheques as a means of payment
Date posted:
April 1, 2019
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57.2g of hydrated sodium carbonate (Na2CO3.XH2O) were dissolved in water and the solution made to one litre. 20cm3 of 0.5M HCl recated with 25cm3 of the hydrated sodium carbonate solution. Determine the value of X. (Na = 23, C = 12, O = 16)
Date posted:
April 1, 2019
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Describe the management of a brooder.
Date posted:
April 1, 2019
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The diagram below illustrates a structure used by a farmer for keeping rabbits.
Study the diagram and answer the questions that follow.
(a) Name the structure illustrated above.
(b) In which section of the structure should the water and feed troughs be placed ?
(c ) State one use of the wooden section of the structure.
(d) What additional facility should be included inside the structure for a doe ?
(e) State any two maintenance practices carried out on the structure.
Date posted:
April 1, 2019
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The diagram below shows a farm implement. Study it and answer the questions that follow.
(a) Identify the farm implement illustrated above
(b) Name the parts labeled G H I
(c ) State three functions of the implement illustrated above.
(d) Name one function of the part labeled H.
Date posted:
April 1, 2019
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The following is a diagram of knapsack sprayer. Use it to answer questions that follow.
(a) Name the parts labeled A, B, C and D.
(b) Give four maintenance practices carried out on a knapsack sprayer.
(c ) Give any two precautions to be observed when using a knapsack sprayer.
Date posted:
April 1, 2019