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sifat kimia alkena

Total questions: 14

Worksheet time: 7mins

Name
Class
Date
1.

Persamaan di bawah menunjukkan tindak balas alkena

The equation below shows a reaction of alkene


CH3CH=CH2 + Y → CH3CH2CH2Br


Antara yang berikut, yang manakah Y?

Which of the following is Y?

a)

Bromin, Br2

Bromine, Br2

b)

Hidrogen bromida, HBr

Hydrogen bromide, HBr

c)

Natrium bromida, NaBr

Sodium bromide, NaBr

d)

Magnesium bromida, MgBr2

Magnesium bromide, MgBr2

2.

Etena dapat dibezakan daripada etana kerana etena dapat

Ethene can be differentiate from ethane because ethene can

a)

terlarut campur dengan air manakala etana tidak

miscrible in water whereas ethane cannot

b)

terbakar dalam udara manakala etana tidak

burn in air whereas ethane cannot

c)

bertindak balas dengan ester manakala etana tidak

react with alcohol to produce ester whereas ethane cannot

d)

melunturkan warna perang air bromin pada suhu bilik manakala etana tidak

decolourised the brown colour of bromine water at room temperature whereas ethane cannot

3.

Rajah di bawah menunjukkan formula molekul bagi dua sebatian hidrokarbon.

Diagram below shows molecular formulae of two hydrocarbon compounds.


Compound A

C4H8


Compound B

C4H10


Antara berikut, yang manakah benar tentang sebatian A dan B?

Which of the following is true about compounds A and B?

a)

Sebatian A menghasilkan lebih jelaga apabila terbakar dalam udara

Compound A produces more soot when burnt in air

b)

Sebatian B menyahwarnakan warna perang air bromine, sebatian A tidak

Compound B decolorizes brown bromine water, compound A does not

c)

Sebatian A adalah hidrokarbon tepu, sebatian B adalah hidrokarbon tak tepu

Compound A is a saturated hydrocarbon, compound B is an unsaturated hydrocarbon

d)

Sebatian A mengalami tindak balas penukargantian, sebatian B mengalami tindak balas penambahan

Compound A undergoes substitution reaction, compound B undergoes addition reaction

4.

Nama IUPAC bagi sebatian yang terhasil antara tindak balas propena dan bromin ialah

The IUPAC name of the compound formed by the reaction between propene and bromine is

a)

Bromopropana

Bromopropane

b)

1,1-dibromopropana

1,1-dibromopropane

c)

1,2-dibromopropana

1,2-dibromopropane

d)

1,3-dibromopropana

1,3-dibromopropane

5.

Sifat-sifat yang manakah sama bagi propana dan propena?

Which properties of propane and propene are the same?

a)

Larut dalam air

Soluble in water

b)

menyahwarnakan warna perang air bromin

Decolourise brown colour of bromine water

c)

Terbakar lengkap dalam udara menghasilkan karbon dioksida dan air

Burn completely in air to produce carbon dioxide and water

d)

Menyahwarnakan warna ungu larutan kalium manganat (VII) berasid

Decolourise purple colour of acidified potassium manganate (VII) solution

6.

Apakah nama proses penyediaan etanol dalam industri?

What is the name of the process for the preparation of ethanol in industry?

a)

Pengoksidaan

Oxidation

b)

Penghidratan

Hydration

c)

Pendehidratan

Dehydration

d)

Penghidrogenan

Hydrogenation

7.

Apakah nama sebatian itu berdasarkan penamaan IUPAC?

What is the name of the compound based on IUPAC nomenclature?

a)

Pent-2-ena

Pent-2-ene

b)

2-metilbut-1-ena

2-methylbut-1-ene

c)

2-metilbut-2-ena

2-methylbut-2-ene

d)

3-metilbut-2-ena

3-methylbut-2-ene

8.
a)

I dan II sahaja

b)

III dan IV sahaja

c)

I, II dan III sahaja

d)

II, III dan IV sahaja

9.

Formula kimia bagi butena ialah C4H8. Tentukan jisim molekul relatif bagi alkohol yang mempunyai bilangan atom karbon yang sama dengan butena.

The chemical formula of butene is C4H8.

Determine the relative molecular mass for the alcohol that same number of carbon with butene.


[ Jisim atom relatif H=1, C=12, O=16 ]

[ Relative atomic mass of H=1, C=12, O=16 ]

a)

30

b)

48

c)

56

d)

74

10.

Propena boleh ditukar kepada propanol melalui proses

Propene can be change to propanol by the process of

a)

Pengoksidaan

Oxidation

b)

Penghidratan

Hydration

c)

Penapaian

Fermentation

d)

Penghidrogenan

Hydrogenation

11.
a)

A

b)

B

c)

C

d)

D

12.

Apakah gas Y?

What is gas Y?

a)

Etana

Ethane

b)

Etena

Ethene

c)

Metana

Methane

d)

Karbon Dioksida

Carbon Dioxide

13.
a)

A

b)

B

c)

C

d)

D

14.

Persamaan kimia berikut menunjukkan pendehidratan propanol kepada gas propena

The following chemical equation shows the dehydration of propanol to produce propene gas.

C3H7OH → C3H6 + H2O


Jika 15.0 g propanol telah didehidratkan, hitung isipadu gas propena yang terhasil pada suhu bilik.

If 15.0 g of propanol is dehydrated, calculate the volume of propene gas produced at room temperature.


[ Relative atomic mass : C=12 ; O=16 ; H=1]

[ Molar volume of gas at room temperature = 24 dm3 mol-1 ]

a)

18.00 dm3

b)

17.14 dm3

c)

8.57 dm3

d)

6.00 dm3