CHAPTER 21 - Land and Its Resources science form 3

7/29/2019 CHAPTER 21 - Land and Its Resources science form 3

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Chapter 21 : Land and its resources

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Scunit/mjsckt/nw/ch21

Name :___________________________________________ Class :________________CHAPTER 21 : LAND AND ITS RESOURCES

3.6.1 Analysing the various minerals found in the Earth crust.1. Which of the following minerals exists as compounds?

P Aluminium oxide

Q Magnetite and clay

R Carbonates and silicates

A. P and Q only

B. Q and R only

C. P and R only

D. P, Q and R

Trial Pahang 2010(32)

2. Which of the following compound does not decompose when heated strongly?

A. Zinc oxide

B. Lead sulphide

C. Copper carbonate

D. Calcium carbonate

Trial Sarawak 2011(33)

3. Diagram below shows the heating of zinc sulphide.

What is the observation of acidified potassium manganate(VII) solution?

A. Turns from purple to colourless

B. Turns to red

C. It will become hot

D. No change

Trial Kl 2011(34)


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4. The following equation represents the reaction of heat on lead sulphide.

What is P?

A. Oxygen

B. Sulphur

C. Sulphur dioxide

D. Carbon dioxide

Trial Sabah 2011(36)

5. Diagram 13 shows the apparatus set-up for an activity.

Diagram 13

What is solution P and the observation of the activity?

Solution P Observation

A. Limewater Solution P turns cloudy

B. Limewater Solution P turns colourlessC. Acidified potassium manganate(VII) Solution P turns colourless

D. Acidified potassium manganate(VII) Solution P turns cloudy

Trial P. Pinang 2011(35)


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3.6.2 Understanding the reaction between metals and non-metals.6. Diagram 20 shows the chemical changes that occur to iron powder through

heating.

Diagram 20

Which of the following represents M and N?

M N

A. Sulphide Carbonate

B. Sulphur Oxygen

C. Potassium manganate(VII) Sulphur

D. Potassium manganate(VII) Oxygen

Trial Kedah 2011(34)

7. Diagram 22 shows an experiment to study the reaction between metal and

non-metal.

Diagram 22

What is the function of potassium manganate(VII) crystals?

A. To absorb moisture

B. To release oxygen

C. To absorb carbon dioxide

D. To produce heat energy

Trial Perak 2011(35)


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8. Diagram 22 shows the heating of zinc with sulphur.

Diagram 22

What is formed when zinc reacts with sulphur?

A. Zinc oxide

B. Zinc sulphide

C. Zinc carbonateD. Zinc sulphate

Trial Sarawak 2011(34)

3.6.3 Understanding silicon compounds.9. Which is not a silicon compound?

A. Sand

B. ClayC. Mica

D. Galena

Trial Perak 2011(34)

10. The following information shows the properties of substance P.

Insoluble in water Does not react with acid Does not decompose upon heating

Which substance has the properties above?

A. Mica

B. Marble

C. Limestone

D. Malachite

Trial Selangor 2011(34)


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11. Silicon and oxygen combine chemically to produce compound R. which of the

following is a characteristic of compound R?

A. Do not break down when heated

B. Dissolve in water

C. Reacts actively with acid

D. Neutralise alkali to form salt and water

Trial N9 2011(36)

12. Which of the following are made from silicon compounds?

I. Electronic chips used in computersII. Ceramic potsIII. Plastic cup

A. I only

B. II only

C. I and II only

D. II and III only

Trial Johor 2012(34)

3.6.4 Analysing calcium compounds.13. Choose the method to produce quicklime.

A. Add dilute hydrochloric acid to calcium carbonate in a test tube

B. Dissolve calcium carbonate in a test tube of water

C. Heat calcium carbonate in a test tube

D. Add limewater to calcium carbonate in a test tube

Trial KL 2011(35)

14. Diagram 18 shows an activity to study the effect of heat on snail shell.

Diagram 18


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Which substance is formed in test tube P after the reaction has taken placed

after heating?

A. Calcium hydroxide

B. Calcium oxide

C. Calcium chloride

D. Calcium bicarbonate

Trial Sabah 2011(33)

15. The following information is about the formation of two compounds starting

from calcium carbonate.

What are P and Q?

P Q

A. Quicklime Slaked lime

B. Slaked lime Quicklime

C. Limewater Slaked lime

D. Slaked lime Limewater

Trial SBP 2012(33)

16. Diagram 20 shows apparatus set-up to study the formation of various products

from the heating of calcium carbonate.

Diagram 20

What is represented by K and L to show the products of the above reaction?

K L

A. Calcium hydroxide Calcium hydroxide solution

B. Calcium carbonate Calcium oxide

C. Calcium hydroxide Calcium oxide

D. Calcium carbonate Calcium hydroxide solution

Trial SBP 2011(33)


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17. Diagram 24 shows an experiment to investigate the reaction between pieces of

eggshell and dilute hydrochloric acid.

Diagram 24

What are the products of the reactions?

A. Calcium chloride + carbon dioxide

B. Calcium oxide + carbon dioxide

C. Calcium hydroxide + carbon dioxide + water

D. Calcium chloride + carbon dioxide + water

Trial Pahang 2011(34)

18. The following information describes a calcium compound.

As a drying agent to prepare ammonia gas To prepare slaked lime

Which calcium compound fits the description above.

A. Calcium carbonate

B. Calcium sulphide

C. Calcium hydroxide

D. Calcium oxide

Trial Perlis 2011(33)

3.6.5 Analysing natural fuel resources and their importance.19. Diagram 23 shows a fractional distillation of petroleum.

Diagram 23


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What are the fractions labelled P, Q and R?

P Q R

A. Diesel Fuel oil Naphta

B. Naphta Diesel Fuel oil

C. Fuel oil Naphta Diesel

D. Fuel oil Diesel Naphta

Trial Perlis 2012(34)

20. Which of the following petroleum fractions has the highest boiling point?

A. Naphtha

B. Bitumen

C. Kerosene

D. Lubricating oilTrial Melaka 2011(34)

21. Which of the following petroleum fraction is correctly matched to its use?

Petroleum fraction Use

A. Petrol As aircraft fuel

B. Bitumen As ship fuel

C. Kerosene As motorcycle fuel

D. Diesel As lorry fuelTrial Sabah 2011(34)

22. Table 2 shows the information collected from the fractional distillation of crude oil.

Characteristic Petroleum fraction

Temperature 30 80 80 - 120 120 - 160 160 - 200

Colour of distillate Clear Light yellow Yellow Light brown

Viscosity of distillate Dilute Dilute Sticky Very sticky

Colour of flame Blue Orange Yellow Red

Amount of soot No soot Little soot More soot A lot of

soot

Table 2

Which statement best describe the petroleum fraction?

A. The higher the boiling point is, the less viscous it becomes

B. The higher the boiling point is, the paler the colour of the fraction

C. The higher the boiling point is, the amount of soot formed increases

D. The higher the boiling point is, burning is more complete

Trial SBP 2012(35)


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23. Diagram 27 shows a fractional distillation tower used in the petrochemical

industry to purify petroleum.

Diagram 27Compared to friction Q, friction P has

A. A lower boiling point

B. A darker colour

C. Larger molecules

D. A higher viscosity

Trial Terengganu 2011(34)


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STRUCTURED QUESTIONSTrial N9 2011(1)1. a Diagram 1 shows three uses of silicon compound.

Diagram 1

Name P, Q and R using the words given in the box below.

Clay Quartz Sand

[3 marks]

b. Draw lines to match the compounds and their elements.

Oxides Metal, carbon, oxygen

Carbonates Metal, silicon, oxygen

Silicates Metal and oxygen

[3 marks]


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Trial Terengganu 2011(2)2. Diagram 2.1 shows an apparatus set-up to study the reactions between metal

and sulphur.

Diagram 2.1

a. Based on diagram 2.1, name the substance formed when iron fillings reacts

with sulphur.

[1 mark]

b. The experiment in diagram 2.1 is repeated using metal J, K and L. the

observation is recorded in table 2.2.

Metal Observation

J Glows brightly

K Burning vigorously

L Burning slowly

Table 2.2

i. Based on table 2.2, which metal is the most reactive with sulphur?

[1 mark]


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ii. Arrange the metals in table 2.2 according to its reactivity with sulphur in

ascending order.

[1 mark]

iii. State the element in magnesium sulphide.

[1 mark]

c. Diagram 2.3 shows an apparatus set-up to study the reactions between

metals and oxygen.

Diagram 2.3

i. Complete the word equation to show the reaction between magnesium and

oxygen.

Magnesium + Oxygen Heat

[1 mark]

ii. What is the function of potassium manganate(VII) powder in this activity?

[1 mark]


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Trial Negeri Sembilan 2012(7)3. Diagram 7.1 shows three arrangement of apparatus to study the characteristic

of calcium carbonate compound.

Diagram 7.1


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a) In table 7.1, state your observations based on Diagram 7.1.

Activity Observation

A

B

C

Table 7.1

[3 marks]

b) Name the gas produced in Activity B.

[1 mark]

c) Predict the result if the gas produced in Activity A is tested with glowing

wooden splinter.

[1 mark]

d) Based on the observation in diagram 7.1, write two properties of calciumcarbonate compound.

i.

ii.

[2 marks]

Reaction Observation

Iron + hydrochloric acid Gas bubbles are released. Limewater

does not turn cloudy.Egg shell + sulphuric acid Gas bubbles are released. Limewater

turns cloudy.

Table 7.2

e) Based on table 7.2, choose one substance that can replace calcium carbonate in

Activity B.

[1 mark]


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CHAPTER 21 - Land and Its Resources science form 3