-
Why should drenching alone not be an effective control measure for livestock
Date posted:
March 28, 2019
-
Explain why the reaction between 1g of potassium carbonate and 2M HCl is faster than the reaction between 1g sodium carbonate and 2M ethanoic acid.
Date posted:
March 28, 2019
-
Outline the main differences between ruminants and non-ruminants
Date posted:
March 28, 2019
-
Describe the factors to consider when selecting a gilt for breeding.
Date posted:
March 28, 2019
-
The flow chart below is for the manufacture of sodium carbonate by the Solvay process. Use it to answer the questions that follow.
(i) Name gas M and Q.
(ii) Name solution F and solid X.
(iii) Name the product L formed and give one of its uses.
(iv) Write equations of the reactions in Tower P
Date posted:
March 28, 2019
-
A student set up the apparatus shown below to prepare and collect dry carbon (IV) oxide gas.
State a correction for three mistakes in the set up above
Date posted:
March 28, 2019
-
Explain cropping in fish farming.
Date posted:
March 28, 2019
-
Give reasons why honey harvesting at night is not encouraged.
Date posted:
March 28, 2019
-
What factors influence siting of calf pens?
Date posted:
March 28, 2019
-
Give the maintenance practices of a permanent calf pen.
Date posted:
March 28, 2019
-
State the factors to consider in siting a rabbit hutch.
Date posted:
March 28, 2019
-
State the reasons for raising rabbit hutches above ground level.
Date posted:
March 28, 2019
-
Zinc reacts with both concentrated and dilute sulphuric (VI) acid. Write equations for the two reactions.
Date posted:
March 28, 2019
-
When a hydrated sample of calcium sulphate CaSO4.xH2O was heated until all the water was lost, the following data was recorded:
Mass of crucible = 30.296 g
Mass of crucible + hydrated salt = 33.111 g
Mass of crucible + anhydrous salt = 32.781 g
Determine the empirical formula of the hydrated salt
(CA = 40, S = 32, O = 16 H = 1)
Date posted:
March 28, 2019
-
The set up of diagram shown below is used to prepare dry nitrogen gas from air. Study it and answer the questions that follow.
(a) What is the purpose of using:
(i) A burning candle.
(ii) Sodium hydroxide solution.
(b) Name:
(i) One impurity present in nitrogen gas prepared.
(ii) A suitable drying agent used.
Date posted:
March 28, 2019
-
The set-up below was used to prepare dry chlorine gas. Study and answer the questions that follow
(a) Name reagents M and substance L.
(b) A warm red phosphorus was lowered into the gas jar of chlorine using a deflagrating spoon:
(i) State any one observation made in this experiment.
(ii) Identify the substance formed in the above reaction.
(c) Both substances in (ii) above undergo hydrolysis when exposed to air. Write an equation to show how anyone of them undergoes hydrolysis.
Date posted:
March 28, 2019
-
State the functions of the following parts of a mouldboard plough
i) Landside
ii) Mouldboard
iii) Coulter
iv) Share point.
v) Frog
vi) Depthwheel
Date posted:
March 28, 2019
-
List the factors that should be considered when grading eggs for marketing.
Date posted:
March 28, 2019
-
Cyanogen is a gaseous compound of carbon and nitrogen only. On complete combustion in oxygen, 250cm3 of cyanogen form 500cm3 of Carbon (IV) Oxide and 250cm3 of nitrogen. Determine the formula of cyanogen.
Date posted:
March 28, 2019
-
State two properties that vulcanized rubber possesses as a result of vulcanization.
Date posted:
March 28, 2019
-
Write an ionic equation for the reaction between copper II ions in solution and excess ammonia solution.
Date posted:
March 28, 2019
-
Use the information provided below to calculate the gross margin of beans per hectare.
Date posted:
March 28, 2019
-
Give two reasons why luminous flame is not used for heating purposes in the laboratory.
Date posted:
March 28, 2019
-
Briefly discuss fish farming in Uganda.
Date posted:
March 28, 2019
-
Outline the problems facing marine fishing in East Africa.
Date posted:
March 28, 2019
-
State the common features of ranching as a farming system:
Date posted:
March 28, 2019
-
Outline the modern Fishing Methods in Kenya.
Date posted:
March 28, 2019
-
Why does the Kenya government put a lot of emphasis on ranching?
Date posted:
March 28, 2019
-
State the limitations of mixed farming
Date posted:
March 28, 2019
-
The diagram below shows some properties of ammonia gas. Use it to answer the questions that follow
a) State the observation made in the combustion tube.
b) (i) Give the test that can be used to identify liquid Y.
(ii) Name gas X
Date posted:
March 27, 2019