Chemistry Test Paper 9

Potassium Aluminium sulphate (potash alum) is used the purification of water for
1. removing colour rig matter
2. killing harmful bacteria
3. removing suspended matter
4. making water soft.
The electronic configurations of elements W and X are 2:8:3 and 2:6 respectively. The formula of the compound formed between W and X is
1. A
2. B
3. C
4. D
Which of the following nitrates does not produce oxygen when heated strongly?
1. A
2. B
3. C
4. D
1. A
2. B
3. C
4. D
A mixture of carbon monoxide, ammonia and carbon dioxide was bubbled through lime water. Which one of the following gases was not absorbed?
1. Carbon monoxide and Ammonia
2. Carbon dioxide and Ammonia
3. Carbon monoxide
4. Carbon dioxide.
The percentage composition of nitrogen in ammonium nitrate is
(N =14; H =l; O = 16)
1. A
2. B
3. C
4. D
Which one of the following gases is dried using calcium oxide?
1. Sulphur dioxide
2. Hydrogen chloride
3. Ammonia
4. Hydrogen.
Which one of the following substances below conducts electricity in solid state?
1. Graphite
2. Sulphur
3. Iodine
4. phosphorus
Sulphuric acid reacts with zinc according to the equation:

Determine the number of moles of zinc that will react with excess sulphuric acid to produce 60cm3 of hydrogen at room temperature?
1. 0.0025
2. 0.005
3. 0.025
4. 0.05
The term oxidation means
1. addition of electrons to a substance.
2. addition of hydrogen to a substance
3. removal of oxygen from a substance.
4. removal of electrons from a substance.
Which one of the following elements can reduce aluminium oxide when heated together strongly?
1. Calcium
2. Lead
3. Iron
4. Copper
When dilute nitric acid followed by silver nitrate solution were added to a certain solution, a white precipitate which darkens when exposed to sunlight was formed.
The solution contained a
1. sulphate.
2. chloride
3. nitrate
4. carbonate
Which one of the following is not acidic oxide?
1. Carbon dioxide
2. Carbon monoxide
3. Sulphur dioxide
4. Phosphorus (V) oxide
When 8 grams of a salt was dissolved in 100g of water the temperature decreased by 10° C. The drop in temperature when 2 grams of the salt is dissolved in 100g of water would BE
1. 10° C
2. 8.5° C
3. 5.00 C
4. 2.5° C
The boiling points of some gases are given below

During fractional distillation of the liquid mixture of gases, which one of
them will vaporize first?
1. Z
2. P
3. W
4. Q
The diagram below shows part of the periodic table and positions of some elements Q, R, T and X. The letters are not the true symbols of the elements.

The most electropositive element is
1. Q
2. R
3. T
4. X
Which one of the following salts can be best prepared by precipitation?
1. Sodium chloride
2. Lead (Il) chloride
3. Potassium chloride
4. Copper (Il) chloride
Which one of the following substances is Not used in the extraction of iron
1. Coke
2. Air
3. Silica
4. Limestone
Which one of the following substances is a synthetic fibre?
1. Nylon
2. Starch
3. Rubber
4. Wool
What is the correct equation for the reaction between chlorine and heated steel wool?
1. A
2. B
3. C
4. D
Potassium chlorate decomposer according to the equation:

The loss in mass in grams when two moles of potassium chlorate are decomposed is
1. 16
2. 32
3. 48
4. 96
Which one of the following substances when heated does not undergo a permanent change?
1. Iodine
2. Copper (II) nitrate
3. Zinc oxide
4. Calcium carbonate
Chlorine atom has electronic configuration of 2, 8, 7. The electronic configuration of chloride ion (C-1) is
1. 2,8,7
2. 2,8.8
3. 2,8,6
4. 2,8,5
The fountain experiment can be demonstrated with ammonia because ammonia
1. reacts readily with water
2. is a very soluble gas in water
3. is lighter than air
4. is denser than air
One of the disadvantages of using detergents for washing is, they
1. are precipitated in hard water to form scum.
2. cause water pollution in rivers and lakes.
3. sometimes cause stains on clothes.
4. wash away the colour of clothes.
The colourless gas produced during fermentation of sugar is
1. ammonia
2. carbon dioxide
3. hydrogen
4. oxygen
Which one of the substances given below can burn is carbon dioxide?
1. Magnesium
2. Aluminium
3. Zinc
4. Lead
Which one of the following hydrocarbon contains multiple bonds?
1. A
2. B
3. C
4. D
Which one of the following solutions form a precipitate when heated?
1. Calcium hydrogen carbonate
2. Potassium hydrogen carbonate
3. Sodium hydrogen carbonate
4. Ammonium carbonate
Graphite is used as an electrode in electrolysis because it
1. has hexagonal carbon rings
2. is soft
3. has mobile electrons
4. is opaque
Which one of the following is formed at the cathode during electrolysis of dilute sodium chloride using platinum electrodes?
1. Sodium
2. Hydrogen
3. Chlorine
4. Oxygen
Which of the fallowing ions when reacted with ammonia will form a blue precipitate that dissolves to give a deep blue solution?
1. Iron (II)
2. Copper (II)
3. Iron (III)
4. Zinc (II)
Calcium carbonate reacts with hydrochloric acid according to the equation:
1. A
2. B
3. C
4. D
A colourless gas that decolourises bromine water is
1. sulphur dioxide
2. chlorine
3. ethene
4. ethane
Hydrogen peroxide decomposes according to the equation:

How many moles of oxygen are given out when I 7.0g of hydrogen
peroxide is completely decomposed? (H = I, O = 16)
1. 0.25
2. 0.50
3. 0.75
4. 1.0
Ethanol burns in oxygen according to the equation:

Calculate the amount of heat given out when 0.2 moles of ethanol is burned completely
1. -237kJ
2. -592.5KJ
3. -1185kJ
4. -2370kJ
The boiling and melting points of substances P, Q, R and S are given below:

Which one of the following substances is a gas at room temperature?
1. P
2. Q
3. R
4. S
Which one of (he following acids will react with calcium carbonate to
produce the least volume of carbon dioxide gas?
1. Dilute sulphuric acid
2. Dilute nitric acid
3. Dilute hydrochloric acid
4. Dilute ethanoic acid
Hydrogen chloride reacts with silver nitrate according to the equation:

The mass Silver Chloride produced when 1 .2 dm of hydrogen chloride is bubbled through silver nitrate at room temperature is
1. A
2. B
3. C
4. D
Which of the following tan be used to test for ethene?
1. Lime water
2. Bromine water
3. Glowing splint
4. Potassium dichromate paper
MULTIPLE COMPLETION QUESTIONS
In each of the questions 41 to 45, one or more of the answers given may be correct. Read each question carefully and then indicate the correct answer according to the following:
A. If 1, 2 and 3 only are correct.
B. If 1 and 3 only are correct.
C. If 2 and 4 only are correct.
D. If 4 only is correct.

Which one of the following gases will decolourise acidified potassium manganate(VII)?
1. A
2. B
3. C
4. D
Which of the following is formed when chlorine is bubbled in sodium hydroxide solution? .
1. A
2. B
3. C
4. D
Which of the following sulphates when heated forms a gas that turns potassium dichromate green?
1. Sodium sulphate
2. Iron (III) sulphate
3. Ammonium sulphate
4. Zinc sulphate
1. A
2. B
3. C
4. D
Which of the following elements belong to the same group in the periodic table?
1. A
2. B
3. C
4. D
Which of the following substances is/are formed when copper (II) nitrate is heated strongly?
1. Copper (II) oxide
2. Nitrogen dioxide
3. Oxygen
4. Copper metal
1. A
2. B
3. C
4. D
ASSERTION - REASON QUESTIONS
Each of the questions 46 to 50 consists of an assertion (statement) on the left-hand side and a reason on the right-hand side
Select:
A. if both the assertion and the reason are true statements and the reason is a correct explanation of the assertion.
B. if both the assertion and the reason are true statements but the reason is not a correct explanation of the assertion.
C. if the assertion is true but the reason is not a correct statement.
D. if the assertion is not correct but the reason is a correct statement.

46. Water and alcohol can be separated by fractional distillation because They have different boiling points
1. A
2. B
3. C
4. D
Ammonia gas turns moist red litmus paper blue Because It is a volatile gas.
1. A
2. B
3. C
4. D
Lead (II) chloride is prepared by double decomposition Because Lead (II) is a soluble salt.
1. A
2. B
3. C
4. D
Concentrated sulphuric acid is not used for drying ammonia Because Ammonia is alkaline
1. A
2. B
3. C
4. D
Chlorine water bleaches dyes Because it is a reducing agent.
1. A
2. B
3. C
4. D

Chemistry Test Paper 9

KAWA Chemistry Paper 1 Quiz