-
The diagram below shows an experiment for investigating electrical conductivity in lead (II) iodide.
Study it and answer the questions that follow.
(a) On the diagram;
(i) Label the cathode.
(ii) Show the direction of movement of electrons.
(b) Write an equation for the reaction that takes place at the anode.
Date posted:
September 5, 2019
-
For each of the following transactions indicate the account to be debited or credited.
Date posted:
September 5, 2019
-
Element X is found in period 3 group (IV) it consists of two isotopes 28X and QX. A sample of X was found to consist of 90% of 28X if the relative atomic mass of X is 28.3, work out the number of neutrons in QX.
Date posted:
September 5, 2019
-
The displacement of a particle S metres, t seconds after passing a fixed point O is given by
S=3+2t-5t2
Calculate:
(a) The displacement of the particle 2 seconds later
(b) The time taken for the particle to return to O
(c) The maximum displacement of the particle
(d) The initial velocity of the particle
(e) The acceleration of the particle after t seconds
Date posted:
September 5, 2019
-
The figure below shows a prism whose cross section is a regular pentagon of side 6cm and whose length is 20cm joined to a cylinder of radius 14cm and height 6cm to form a the model of a solid
(a) Calculate the cross section area of the pentagon
(b) Calculate the total volume of the solid
(c) The model represents a pillar of total height 5.2m, calculate the volume of the actual solid
in m3
Date posted:
September 5, 2019
-
A matatu left Oyugis for Homabay town 51km away at an average speed of 48km/h at 7.00am. At 7.30am a Boda boda left Homabay for Oyugis travelling along the same route at an average speed of 60km/h
(a) The time when Boda boda meet the matatu
(b) How far from Oyugis did the Boda boda meet the matatu
(c) After meeting the Boda boda the matatu stopped for fifteen minutes before resuming the journey. At what speed should it travel then to reach Homabay at the same time when the Boda boda reached Oyugis
Date posted:
September 5, 2019
-
Four schools Wiobiero, Asumbi, Nyawita and Angiro are such that Wiobiero is 15km from Asumbi on a bearing of 158o, Nyawita is to the west of Asumbi and 20km away while An’giro is to the South of Nyawita and on a bearing of 240o from Wiobiero.
(a) Using a scale of 1:400,000 draw a scale diagram showing the relative positions of the four schools.
(b) Using your diagram determine the distance and bearing of Ang’iro from Asumbi
(c) A mast is to be erected so that its equidistant from Asumbi and Nyawita and 20km from Ang’iro on the same diagram show the position of the mast and find its distance from Wiobiero
Date posted:
September 5, 2019
-
Study the flow chart below and answer the questions that follow.
(a) Give the names of the following.
(i) Solid P
(ii) Solid U
(iii) Solid T
(b) Write the equation for the reaction taking place in Step I.
(c) Write the equation for the reaction between concentrated hydrochloric acid and solid P.
(d) Explain what would happen if hot concentrated sodium hydroxide was used in place of cold dilute sodium
hydroxide.
Date posted:
September 5, 2019
-
Mr. Ombogo the principal of Chiga secondary would wish to cover the floor of the new administration block using the square tiles. The floor is a rectangle of sides 12.8m by 8.4m. Find the area of each of the largest tiles which can be used to fit exactly without breaking
Date posted:
September 5, 2019
-
Rewrite the following sentences according to the instructions given. Do not change the meaning.
1. If he calls me, I will attend the wedding ceremony. (Begin: Unless...........)
2.In spite of the bad weather they decided to go for a walk as planned. (Rewrite using although)
3.The snake did not bite the boy. (Begin: The boy ...)
4.They were so happy that they forgot to lock the door. (Begin: So happy ...)
5.Shakespeare is one of the greatest play writers of all time. He lived in England. (Use an appositive)
6.Muli could have passed the examination. Muli was regularly absent from school. (Join into one sentence beginning: Were it not......)
7.The teachers agreed to teach after signing an agreement with the government. (Begin: Only....)
8.Neither Peter nor Michael prefers coffee to tea. (Rewrite to begin with Peter and end with Michael)
9.He was the Chairman of the society, and therefore he couldn’t tolerate anybody’s impudence. (Begin As.......)
10.Moses made several attempts to reconcile the friends but failed. (Begin: Several.........)
11. Risper did not know that the dog was behind her. (Begin: Little............)
12.Joseph and his sister came out of the bus accident unhurt. (Begin: Neither Joseph and end with ‘hurt in the bus accident’)
13. When the guests arrived, the function begun. (Begin No sooner...........)
Date posted:
September 5, 2019
-
Rewrite the following sentences according to the instructions given. Do not change the meaning.
1.But for my father’s prompt action, I would be dead by now.(Begin: Had it..................)
2.I am sorry you missed lunch.(Begin: I regret.......................)
3.As soon as the meeting ended, the impatient members walked away. (Use : Hardly.................)
4.Goods once sold will not be returned under any circumstances. Begin: Under.............)
5.The fire destroyed the whole building. (Rewrite ending ...the fire)
6.You will not take this book under any circumstances. (Begin: Under................)
7.The teacher found out how intelligent Naserian was when he started the discussion. (Begin: It was not......)
8.George does not smoke. He does not drink. (Join the sentences using: .............neither.n.........or.......)
9.It’s rare for tourists to visit North Eastern province. (Begin seldom..............)
10.How high do you think the tallest building in New York is? (Begin: what.................)
11.We can save time by getting to class before the bell goes. (Begin: Time..............)
12.It is not surprising that Africa’s representative in the world cup performed dismally.(Begin: it is little.............)
Date posted:
September 5, 2019
-
A train of length 80m crosses a bridge 20 m long in 5 seconds. Calculate the average speed of the train in km/h
Date posted:
September 5, 2019
-
Given that sin (3x-35)o – cos (x+20)o= 0 and x is an acute angle, find its value
Date posted:
September 5, 2019
-
Rewrite the following sentences according to the instructions given. Do not change the meaning.
1.Some doctors think both rest and medicine are equally effective in sorting depression.(Rewrite using . . . . as . . . . as medicine)
2.I am sure it was an exciting experience for her (Rewrite the sentence using ‘must’)
3..He is too stupid to handle such a difficult situation. (Use so instead of too)
4.No sooner had I solved one problem than another cropped up. (Begin : Hardly..........)
5.If you come to the arena, you will meet the great Isukuti dancers. (Rewrite using...........unless ....)
6.Korean women are very short; very few of them are above five feet tall.(Rewrite as one sentence using the word 'hardly')
7..He had never known what it meant go without a meal. He was unsympathetic towards the street boy. (Begin: Never . . . .)
8.My family owns a holiday flat and that is why we always go to the same place. (Begin: If...)
9. Chinua Achebe one of Africa’s greatest writers passed on three months ago. (Rewrite using parenthesis)
10.The heavy downpour brought their picnic to an abrupt end. (Rewrite using ‘cut’)
11.If he calls me, I will attend the wedding ceremony. (Begin: Unless ----)
Date posted:
September 5, 2019
-
Evaluate using mathematical tables only expressing your answer to 4 significant figures
Date posted:
September 5, 2019
-
The figure below shows a triangular prism ABCDEF. AF=CD=BE=18cm, The ends ABC and EDF are equilateral triangles of side 8cm. calculate the angle plane ABD makes with the lie CD
Date posted:
September 5, 2019
-
In the circle drawn to scale below A,B,C and D are points on its circumference, Chord BC=AC and angle ADC=138o
Giving reasons calculate the angle ACB
Date posted:
September 5, 2019
-
Solve the simultaneous inequalities given below and list all the integral values of x
Date posted:
September 5, 2019
-
The figure below shows a triangle ABC not drawn to scale, D is a point on line AC. Given that BC=14cm, DC=7cm and angle ABC=angle BDC. Find the length of AD
Date posted:
September 5, 2019
-
A solid block in the shape of a cylinder has a height of 14cm and weighs 22kg. If it is made of material of density 5g/cm3, find the radius of the cylinder. (Take pi=22/7)
Date posted:
September 5, 2019
-
Mr. Ochuodho who deals in electronics sells a radio to a customer at Kshs. 1,440 after giving him a discount of 10% but finds that he still makes a 20% profit. Find the profit Mr. Ochuodho would make if he does not give a discount.
Date posted:
September 5, 2019
-
A straight line L1 is perpendicular to another line L2 whose equation is 3y+4x=12. If the two lines
meet at point P which lines on the x-axis, find:
(i) The co-ordinate of point P
(ii) The equation of line L1 in the form y=mx+c
Date posted:
September 5, 2019
-
The diagram below shows an energy level diagram for the formation of magnesium chloride. Study it and answer the questions that follow.
(i) State the enthalpy changes represented by A,B and C
(ii) What is the relationship between 
Date posted:
September 5, 2019
-
The table below shows estimated values for a certain country in millions of dollars.
US$
Wages and salaries .....................450,000
Income from rent .......................30,000
Profit of corporation ..................40,000
Net interest ............................80,000
Indirect taxes ..........................70,000
Subsidies ...............................200,000
Depreciation............................. 80,000
Net income from abroad..................... 50,000
From the above table calculate;
(a) The gross domestic produce
(b) Gross national product
Date posted:
September 4, 2019
-
Enter the following transactions in a single column cash book and balance it off.
2013 August 2nd commenced business with Sh. 14.000 cash and 200,000 at the bank.
2013 August 3rd made cash sales amounting to sh. 6,000
2013 August 5th received cash 16,000 from Marwa, a debtor.
2013 August 12th paid for motor expenses Sh. 7,000 in cash.
2013 August 13th drew Sh. 30,000 from bank for office use.
Date posted:
September 4, 2019
-
State FOUR Ways in which advertising agencies assist in sales promotion.
Date posted:
September 4, 2019
-
Record the following transactions in a two column cash bookand balance it off as at January 12th2008
January 1 Started business with capital sh. 10,000 cash and sh. 25,000 bank overdraft
January 2 bought stock in cash sh. 6,000
January 3 cash sales sh. 2,500
January 7 bought stock worth sh. 5,000 on credit
January 12 withdrew cash from bank for office use sh. 4,000
Date posted:
September 4, 2019
-
Highlight four reasons why mail order business is not very popular in Kenya.
Date posted:
September 4, 2019
-
Chlorine is used to prepare vinyl chloride (chloroethene) CH2 = CHCl.
(i) State why vinyl chloride (CH2 = CHCl) undergoes addition polymerization.
(ii) Name the polymer formed.
(iii) Complete the following equation to show how the two monomers combine during polymerization.
CH2 = CHCl + CH2 = CHCl----->
Date posted:
September 4, 2019
-
State two reasons why tin coating is used in food cans.
Date posted:
September 4, 2019