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A farmer has the option of growing either wheat or maize in his one hectare land. Wheat gives a return of Kshs. 20, 000 while maize gives a return of Kshs. 35, 000. What will be the opportunity cost.
Date posted:
October 17, 2019
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3.52g of Carbon (IV) Oxide and 1.40g of water are produced when a mass of a hydrocarbon is completely burnt in oxygen. Determine the empirical formula of the hydrocarbon;
(H = 1 , C= 12, O = 16)
Date posted:
October 17, 2019
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State three ways in which Portugal benefited from Mozambique prior to 1900.
Date posted:
October 17, 2019
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Identify the super power that emerged after the Second World War.
Date posted:
October 17, 2019
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Identify two treaties that the Allies signed with the central powers after the First World War.
Date posted:
October 17, 2019
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Calculate the volume of oxygen gas used during the burning of magnesium (O = 16, molar gas volume = 24,000cm3 at room temperature)
Date posted:
October 17, 2019
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Define the term “sphere of influence’ as used by the European powers at Berlin Conference of 1884 and 1885.
Date posted:
October 17, 2019
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How many chloride ions are present in 1.7g of magnesium chloride crystals?
(Avogadro’s constant = 6.0 x 1023, Mg = 24, Cl = 35.5)
Date posted:
October 17, 2019
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State two political effects of the Trans-saharan trade on West Africa.
Date posted:
October 17, 2019
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List down two early centres of agriculture in the world.
Date posted:
October 17, 2019
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Explain five ways through which criminal activities can be reduced in Kenya.
Date posted:
October 17, 2019
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Explain six results of the migration and settlement of the Bantu communities around Mount Kenya.
Date posted:
October 17, 2019
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Name three sub tribes of Ameru community.
Date posted:
October 17, 2019
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Identify two security organs in Kenya.
Date posted:
October 17, 2019
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When 1.675g of hydrated sodium carbonate was reacted with excess hydrochloric acid,
the volume carbon (IV) oxide gas obtained at room temperature and pressure was 150cm3).
Calculate the number of moles of water of crystallization in one mole of hydrated sodium
carbonate:- (Na=23, H =1, C=12, O=16, MGV at R.T.P = 24000cm3)
Date posted:
October 17, 2019
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State the main factor that contributed to the decline of gold trade during the period of Portuguese rule on the coast of East Africa.
Date posted:
October 17, 2019
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The equation of the formation of iron (III) chloride is
2Fe(s) + 3Cl2(g)------>2FeCl3
Calculate the volume of chlorine which will react with iron to form 0.5g of Iron (III) chloride.
(Fe = 56 Cl=35.5). Molar gas volume at 298K = 24dm3)
Date posted:
October 17, 2019
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In a filtration experiment 25cm3 of a solution of Sodium Hydroxide containing 8g per
litre was required for complete neutralization of 0.245g of a dibasic acid. Calculate
the relative molecular mass of the acid (Na = 23.0, O = 16, H= 1)
Date posted:
October 17, 2019
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State the account to be debited and the account to be credited for each of the following transactions.
Date posted:
October 17, 2019
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In an experiment magnesium ribbon was heated in air. The product formed was found to be heavier than the original ribbon. Potassium manganate (VII) was on the other hand, heated in air and product formed was found to be lighter. Explain the differences on the observation made
Date posted:
October 17, 2019
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Outline four measures that the sender of a message should take in order to enhance effective communication.
Date posted:
October 17, 2019
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Draw a diagram to illustrate how the demand curve of a product shifts to the right.
Date posted:
October 17, 2019
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A fixed mass of gas occupies 200 cm3 at a temperature of 230c and a pressure of 740 mm Hg.
Calculate the volume of the gas at -250c and 790 mm Hg pressure.
Date posted:
October 17, 2019
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A gas occupies 5dm3 at a temperature of -270C and 1 atmosphere pressure. Calculate the volume occupied by the gas at a pressure of 2 atmospheres and a temperature of 1270C
Date posted:
October 17, 2019
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The figure below shows two gases P and Q diffusing from two opposite ends 18 seconds after the experiment
(a) Which of the gases has a lighter density?
(b) Given that the molecular mass of gas Q is 17, calculate the molecular mass of P
Date posted:
October 17, 2019
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Gas B takes 110 seconds to diffuse through a porous pot, how long will it take for the same amount of ammonia to diffuse under the same conditions of temperature and pressure?
(RMM of B = 34 RMM of ammonia = 17)
Date posted:
October 17, 2019
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Read the following story and then answer the questions that follow.
HAWK AND HEN
A long time ago, there lived Hen and her friend Hawk. The two were good friends and lived near each other. They shared whatever they possessed and their children too were good friends. Every morning after the planting season, one called upon the other to go out to the woods and to rubbish dumps to look for worms and other types of food.
One day, as they prepared themselves to go out to look for food, Hare called on them and told them, “My friends, as you know a friend in need is a friend indeed, I’ve called upon you this morning to invite you to my daughter’s wedding. I cannot forget,” she continued, “how you, especially you, Hen, fed my children when I was sick and bed-ridden. Please, come and enjoy with all of us,” she concluded.
Hen and Hawk looked at each other and nodded their heads. They promised Hare they would go to the ceremony. Hare thanked them and ran off towards his home.
After Hare had left, they looked at each other and burst out in laughter. As far as they were concerned, they did not consider Hare as a real friend but just one of them. They, however, decided to attend the wedding party out of curiosity. Hawk’s son had married a very beautiful girl the previous year and there was a lot of eating and drinking. Hawk could remember vividly how Hyena drank and drank beer until his four legs could not carry him. He had to be taken home completely unaware of what was happening. Could Hare’s party match hers? Hawk wondered. She became curious and wanted to find out.
On the wedding day, Hen and Hawk dressed themselves in their best party costumes. They warned their children not to leave their home compounds during their mothers’ absence. They then left home and walked happily towards Hare’s compound. Hare saw them at a distance and hurried to meet them.
“Oh! How are you my friends? Welcome home. The party is going to start in an ‘hour’s time”.
They went home while Hare was holding Hen’s hand. Hawk noted this with displeasure but she said nothing. When they reached home, Hare said: “Sit down and have a drink while I prepare myself’.
She asked one of her young sons to serve them drinks. When the drinks were brought, again Hawk noted that Hen was served the drink in a glass but Hawk was served in a cup with cracked edges. This killed Hawk’s spirits. She may not have been as beautiful as Hen but that was no reason why she should be discriminated upon. After all, hadn’t she gone out of her way to dress in her best clothes, just for that party? Hawk thought bitterly.
After an hour, Hare emerged from an inner room, dressed magnificently with matching shoes and a necklace. They all proceeded to the party. Hare made sure she sat next to Hen but Hawk sat a little further away. She wondered what was happening. Hen seemed very happy at the party and she laughed all the time with Hare, ignoring Hawk’s presence. Hawk became moody and decided not to talk to any of them from then on.
After the party was over, Hare bid the two goodbye and left for home. It was getting dark as they walked home. Hen tried to involve Hawk in a conversation.
“How did you find the party? I think it was wonderful.” Hawk did not answer Hen and she wondered why Hawk was behaving in that manner. Hen wanted to discuss the matter but Hawk said she was not interested. They went home without talking to each other until they reached their respective compounds. Hen, as usual in her high spirits, bid Hawk goodbye but Hawk looked at her sneeringly, swung her hips more than usual and shut her gate without a word. Hen closed her gate, too, and went to cook for her children.
Very early the next morning, Hawk’s child knocked at Hen’s door and after Hen opened the door, she said, “Mummy sent me to you to tell you to give back all the things that belong to us. Here are all your things that were in our house”
Hen was dumbfounded. She could not imagine ending the friendship with Hawk. They had been friends for such a longtime. Nevertheless, she gave the child all the things that were not hers to take to her mother. The child left but after a short while, she returned.
“Mummy told me you did not give me all the things. She needs our hoe and panga which you borrowed last week to cultivate your farm. She also needs the razor-blade which you borrowed yesterday to shave your children.”
Hen went back to the house and came out with the hoe and the panga but without the razor. She could not find the razor at all. She told Hawk’s child,
“Go and tell your mother I have searched for the razor-blade everywhere but I cannot get it. Tell her I will look for it later on and I will send one of my children with it”
Hen called out to all her children to look for the missing razor-blade and they scratched all round their compound without any success. That evening, Hen sent one of her children to report that the razor-blade was lost and they could not get it. When Hen’s child knocked at Hawk’s door, the door opened, she was pulled in by Hawk and killed. Hawk insisted that she had to have back her razor-blade and she swore to eat all of Hen’s children unless she got it back.
The next morning, Hawk and her children hovered over Hen’s compound trying to get a chance to snatch one of her children. Hen clucked loudly cluck...cluck...running all over the compound, frightened and frantically calling her children to come to her for protection. They all ran to her and she protected them, and Hawk flew away disappointed.
From that time until today, hens get frightened and hide their children any time they see Hawk nearby. Hawk, on the other hand, is still angry and she looks for Hen’s children to kill. She said she will never stop until she gets her razor-blade back. Hen still looks for her razor-blade everywhere and that is why hens are always seen scratching here and there looking for Hawk’s razor-blade. They wonder whether they will ever restore peace with Hawk and her family.
Questions
a)Identify and illustrate the main occupation of the characters in this narrative.
b)Explain the meaning of the following proverb as used in the passage.
“A friend in need is a friend indeed.”
c)How did Hen hide her children from the Hawk?
d)Identify and explain the characteristics of narrative evident in this story.
e)What incidences forced Hawk to break her friendship with Hen?
f)Identify at least two character traits of Hawk that are evident from this story.
g)Why do you think the words Hawk and Hen start with capital letters?
Date posted:
October 17, 2019
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Below are structures of particles. Use it to answer questions that follow. In each case only electrons in the outermost energy level are shown
(a) Identify the particle which is an anion
(b) Choose a pair of isotopes. Give a reason
Date posted:
October 17, 2019
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Taja mambo yoyote manne yanayofanywa na serikali yetu kuimarisha lugha ya Kiswahili
Date posted:
October 17, 2019
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Kanusha katika ukubwa
Mwizi huyu aliiba kisu na ng’ombe wa mwanamke yule.
Date posted:
October 17, 2019