Free Printable Rate of reaction/Kadar tindakbalas

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Rate of reaction/Kadar tindakbalas

Total questions: 50

Worksheet time: 50mins

Name

Class

Date

Which of the following process has the highest rate of reaction?

Antara yang berikut, proses yang manakah mempunyai kadar tindak balas

yang paling tinggi?

Rusting

Pengaratan

Respiration

Pernafasan

Combustion

Pembakaran

Photosynthesis

Fotosintesis

Which of the following is the characteristic of catalyst?

Antara yang berikut yang manakah adalah sifat mangkin?

Catalyst used only in solid form.

Mangkin digunakan hanya dalam bentuk pepejal.

Catalyst increases the quantity of product.

Mangkin meningkatkan kuantiti hasil tindak balas

Physical state of catalyst is unchanged during reaction.

Keadaan fizikal mangkin tidak berubah semasa tindak balas.

The quantity of catalyst remains the same after the reaction.

Kuantiti mangkin tetap sama selepas tindak balas.

Diagram shows the energy profile diagram of a reaction.

Rajah menunjukkan gambar rajah profil tenaga bagi suatu tindak balas.

Based on the Collision Theory, which statement explains the changing of curve I to curve II?

Berdasarkan Teori Perlanggaran, pernyataan manakah menerangkan perubahan lengkungan I kepada lengkungan II?

The total surface area of the solid reactants increases

Jumlah luas permukaan pepejal bahan tindak balas meningkat

The kinetic energy of the particles of reactant decreases

Tenaga kinetik zarah-zarah bahan tindak balas berkurangan

The number of mole per unit volume of particles increases

Bilangan mol per unit isipadu zarah-zarah meningkat

The activation energy of the reaction decreases

Tenaga pengaktifan tindak balas berkurangan

Why does a higher temperature increase the rate of a reaction?

it increases both the frequency and energy of particle collisions

it only increases the frequency of particle collisions

it only increases the energy of particle collisions

it reduces the activation energy of the reaction

Grinding a effervescent tablet into powder increases the rate of reaction due to increased

concentration

surface area

temperature

reactants

Adding a catalyst ___________ the activation energy.

Raises

Lowers

Doesn't affect

Inreases

Which graph shows the effect of increasing temperature on the rate of reaction of calcium carbonate with dilute hydrochloric acid?

In an experiment, a 2 g lump of zinc and 2 g of powdered zinc are added separately to equal volumes of dilute sulphuric acid. The solid line on the graph shows the volume of gas given off when the 2 g lump is used. Which dotted line is obtained when the zinc is powdered?

A slice of meat which has been cut into smaller pieces takes a shorter time to cook if compared to a slice of meat which did not cut to smaller pieces

Sekeping daging yang dipotong kepada kepingan-kepingan kecil akan

mengambil masa yang lebih cepat untuk dimasak berbanding sekeping daging yang tidak dipotong.

Based on the above statement, choose the best explanation.

Berdasarkan pernyataan di atas, pilih penjelasan yang paling sesuai.

The smaller the size of reactant, the higher the kinetic energy of the particles

Lebih kecil saiz bahan tindak balas, lebih tinggi tenaga kinetik zarah- zarah.

The smaller the size of reactant, more particles in reactant will exist

Lebih kecil saiz bahan tindak balas, semakin banyak jumlah zarah yang wujud.

The smaller the size of reactant, the lower activation energy needs for a reaction to occur.

Lebih kecil saiz bahan tindak balas, lebih rendah tenaga pengaktifan yang diperlukan untuk tindak balas.

The smaller the size of reactant, the bigger the total surface area.

Lebih kecil saiz bahan tindak balas, lebih besar luas jumlah permukaan bahan tindak balas tersebut

10.

The following diagrams show a reaction between liquid X and solid Y to form a gas.

Rajah-rajah berikut menunjukkan satu tindak balas di antara cecair X dan pepejal Y untuk membentuk gas.

1 and 3

1 dan 3

1 and 4

1 dan 4

2 and 3

2 dan 3

2 and 4

2 dan 4

11.

The rate of catalytic decomposition of 20 cm³

of 1.0 mol dm^-3 of hydrogen peroxide is shown in curve Q.

Kadar penguraian bermangkin 20 cm³ hidrogen 1.0 mol dm^-3 ditunjukkan sebagai lengkung Q.

Which of the following changes to the experiment will produce curve P?

Yang mana satukah perubahan terhadap eksperimen berikut yang menghasilkan lengkung P?

Cool the hydrogen peroxide solution to lower temperature.

Sejukkan larutan hidrogen peroksida ke suhu yang lebih rendah

Repeat the experiment by using 50 cm³ solution of 0.5 mol dm^-3 of hydrogen peroxide

Ulang eksperimen dengan menggunakan 50 cm³ 0.5 mol dm^-3hidrogenperoksida

Repeat the experiment by using 20 cm³ solution of 1.5 mol dm^-3 of hydrogen peroxide

Ulang eksperimen dengan menggunakan 20 cm³ 1.5 mol dm^-3hidrogenperoksida

Adding more catalyst to the 20 cm³of 1.0 mol dm^-3 of hydrogen peroxide solution.

Tambah lebih banyak mangkin kepada 20 cm³ 1.0 mol dm^-3larutan hidrogen peroksida

12.

Which statement explains the effective collision?

Pernyataan yang manakah menerangkan perlanggaran berkesan?

The collision that causes a reaction

Perlanggaran yang menyebabkan tindak balas berlaku

The collision which takes place after a reaction

Perlanggaran yang berlaku selepas tindak balas

The collision which takes place before a reaction

Perlanggaran yang berlaku sebelum tindak balas

The collision produces less energy than the activation energy

Perlanggaran menghasilkan kurang tenaga berbanding tenaga

pengaktifan

13.

Persamaan berikut mewakili tindak balas antara kalsium karbonat dan asid hidroklorik.

CaCO3 + 2HCl $\rightarrow$ CaCl2 + CO2 + H2O

Kaedah manakah yang paling sesuai untuk meningkatkan kadar tindak balas?

Mengecilkan saiz kalsium karbonat

Mengurangkan isipadu asid hidroklorik

Menurunkan suhu asid hidroklorik

Mengurangkan kepekatan asid hidroklorik

14.

Siti is cooking meat curry for lunch.

What should be done to make sure the meat is cooked quickly?

Siti memasak kari daging untuk hidangan tengahari. Apakah yang patut dilakukan untuk memastikan daging itu masak dengan cepat?

Cooking using slow fire

Memasak dengan menggunakan api yang perlahan

Cooking using a large pot

Memasak dengan menggunakan periuk yang besar

Cut meat into small size

Memotong daging kepada saiz yang kecil

Using a large amount of coconut milk

Menggunakan isipadu santan yang banyak

15.

Which of the following explains the meaning of effective collision?

Antara pernyataan berikut, yang manakah menjelaskan maksud perlanggaran berkesan?

The collision where is energy is less than the activation energy

Perlanggaran yang tenaganya kurang daripada tenaga pengaktifan

The collision that has a low energy

Perlanggaran yang berlaku mempunyai tenaga yang rendah

The collision which takes place before a reaction

Perlanggaran yang berlaku sebelum sesuatu tindak balas

The collision that cause a reaction

Perlanggaran yang menghasilkan tindak balas

16.

Rajah menunjukkan susunan radas bagi satu eksperimen untuk menentukan kadar tindakbalas.

Diagram shows the apparatus set-up in an experiment to determine the rate of reaction.

Antara yang berikut, yang manakah kaedah yang tepat untuk menentukan kadar tindakbalas dengan menggunakan susunan radas ini?

Which of the following is the accurate technique to determine the rate of reaction by using this apparatus set-up?

Catatkan isipadu gelembung-gelembung tak berwarna terhasil pada setiap selangan masa 30 saat.

Record the volume of colourless bubbles formed at every 30 seconds interval.

Catatkan masa yang diambil apabila tindak balas lengkap.

Record the time taken when the reaction is completed

Catatkan masa yang diambil apabila semua serbuk mangan(IV) oksida terlarut sepenuhnya.

Record the time taken when all the manganese(IV) peroxide powder completely dissolved.

Catatkan masa yang diambil apabila pH larutan hidrogen peroksida berubah.

Record the time taken when pH of hydrogen peroxide solution change.

17.

Dua eksperimen telah dijalankan oleh sekumpulan pelajar Tingkatan 5 untuk menyiasat kadar tindakbalas di antara kalsium karbonat dengan asid nitrik seperti yang ditunjukkan dalam Jadual di atas.

Two experiments were conducted by a group of Form 5 students to investigate the rate of reaction between calcium carbonate and nitric acid as

shown in table above.

18.

Rajah di atas menunjukkan profil tenaga bagi suatu tindakbalas.

Diagram above shows the energy profile for reaction

Antara berikut, yang manakah benar tentang Rajah di atas?

Which of the following are correct about diagram above?

I. Gambar rajah profil tenaga menunjukkan tindakbalas

endotermik

Energy profile diagram represents the endothermic

reaction.

II. Bahan tindak balas mempunyai tenaga yang lebih tinggi

berbanding hasil tindak balas.

Reactant has higher amount of energy than the product

III. Kehadiran mangkin meningkatkan tenaga pengaktifan

tindak balas asal.

Presence of catalyst increases the activation energy of

the initial reaction.

IV. L ialah tenaga pengaktifan bagi tindak balas tersebut.

L is the activation energy for the reaction.

I dan II

I and II

I dan III

I and III

II dan IV

II and IV

III dan IV

III and IV

19.

The word for a substance created in a chemical reaction...

Reaction

Reactant

Product

Mass

20.

Identify where the reaction has finished

21.

Order the letters from highest to lowest rate of reaction.

A > B > C > D

A > BC > D (B and C have the same rate)

A > B > CD (C and D have the same rate)

D > C > B > A

22.

The time taken for 2 g of magnesium powder to react completely with excess hydrochloric acid is 5 minutes. What is the average rate of the reaction?

Masa yang diambil untuk 2 g serbuk magnesium bertindak balas lengkap dengan asid hidroklorik berlebihan ialah 5 minit.

Berapakah kadar purata bagi tindak balas ini?

0.4 g s^-1

0.4 g min^-1

2.5 g s^-1

2.5 g min^-1

23.

Table shows the volume of gas release at interval time of 30 seconds in an experiment to determine the rate of reaction .

Jadual menunjukkan isipadu gas yang terbebas pada sela masa 30 saat dalam satu eksperimen untuk menentukan kadar tindak balas.

What is the average rate of reaction in the second minute?

Apakah kadar tindak balas purata dalam minit kedua?

0.06 cm³s^-1

0.12 cm³s^-1

0.37 cm³s^-1

7.00 cm³s^-1

24.

The diagram above shows a mixture of gas P and Q ia a vessel at room temperature.

Rajah di atas menunjukkan gas P dan Q dalam bekas pemampat pada suhu bilik.

Gas P reacts with gas Q according to the following equation:

Gas p bertindakbalas dengan gas Q mengikut persamaan berikut:

P(g) + Q(g) --------> R(g)

Which of the following procedures will increases the rate of formation of R?

Antara prosedur berikut, yang manakah akan meningkatkan kadar pembentukan R?

Pull the piston upwards

Tarik omboh ke atas

Push the piston downwards

Tolak omboh ke bawah

Immerse the vessel in water at room temperature

Rendam bekas itu dalam air pada suhu bilik

Remove some of the mixture from the vessel.

Mengeluarkan sebahagian daripada campuran itu dari bekas

25.

One of the methods to determine the rate of reaction is by measuring the time taken for the formation of precipitate.

Satu daripada kaedah untuk menentukan kadar tindak balas ialah dengan mengukur masa yang diambil untuk pembentukan mendakan.

Dalam tindak balas manakah,kadar tindak balas boleh ditentukan dengan menggunakan kaedah ini?

A. Zn + 2HCl à ZnCl₂ + H₂O

NaOH + HNO₃ à NaNO₃ + H₂O

CaCO₃ + 2HCl à CaCl₂ + H₂O

Na₂S₂O₃ + H₂SO₄ à Na₂SO₄ + S + SO₂ + H₂O

26.

Two experiment were conducted to study the rate of reaction between marble chips, which were in excess and hydrocholic acid of different concentrations.

Dua eksperimen dijalankan untuk mengkaji kadar tindakbalas antara ketulan marmar yang berlebihan dengan asid hidroklorik yang berlainan kepekatan.

Which of the following graphs best describes the above experiments?

Antara graf berikut, yang manakah paling tepat menghuraikan eksperimen di atas?

27.

Which graph correctly shows the change of mass of reactant against time?

Graf manakah yang betul menunjukkan perubahan jisim bahan tindak balas melawan masa?

28.

Which of the following define the rate of reaction correctly ?

Yang manakah di antara berikut mendefinisikan kadar tindak balas dengan betul ?

Mass of products

Mass of reactants

Jisim hasil tindakbalas

Jisim bahan tindakbalas

Time taken

Mass of products

Masa yang diambil

Jisim hasil tindakbalas

Volume of gas released

Time taken

Isipadu gas yang dibebaskan

Masa yang diambil

Mass of reactants used

No. of mol

Jisim bahan tindakbalas digunakan

Bilangan mol

29.

State the meaning of the effective collision.

Nyatakan maksud perlanggaran berkesan.

The collision that cause reaction

Perlanggaran yang menyebabkan tindak balas berlaku

The collision produces less energy than the activation energy

Perlanggaran menghasilkan tenaga kurang daripada tenaga pengaktifan

The collision that take place before the reaction

Perlanggaran yang berlaku sebelum tindak balas

The collision that take place after the reaction

Perlanggaran yang berlaku selepas tindak balas

30.

A group of scout camping during school holidays.

Two students were cooking mutton. By using the knowledge in chemistry, how the students can make the mutton cook faster?

Sekumpulan pengakap sedang berkhemah semasa cuti sekolah. Dua pelajar sedang memasak daging kambing.

Dengan menggunakan pengetahuan kimia, bagaimana pelajar ini dapat mempercepatkan masa untuk memasak daging kambing?

Let the mutton cook itself under sun

Biarkan daging kambing masak dengan sendirinya di bawah cahaya matahari

By cutting to smaller size of mutton

Dengan memotong daging lebih kecil

Apply mutton with a lot of cooking oil

Sapukan daging kambing dengan minyak masak yang banyak

31.

Effective collision only happen if particles possess

activation energy only.

Perlanggaran berkesan hanya terjadi apabila zarah-zarah

mencapai tenaga pengaktifan.

True / Betul

False / Salah

32.

How could we make this reaction happen more quickly?

Decrease the concentration of the acid

crush the chalk to increase the surface area

Put the test tube in an ice bath

33.

Diagram shows a graph of the volume of gas released at for a reaction. Curve I is obtained from the reaction between excess calcium carbonate with 50 cm³ of 0.5 mol dm^-3 of hydrochloric acid at room temperature.

Rajah menunjukkan graf isi padu gas yang terbebas bagi satu tindak balas. Lengkung I diperolehi dari tindak balas antara kalsium karbonat berlebihan dengan 50 cm³ asid hidroklorik 0.5 mol dm^-3 pada suhu bilik.

Which reaction produced curve II?

Tindak balas yang manakah menghasilkan lengkung II?

Excess calcium carbonate with 50 cm³ of 0.5 mol dm^-3 of hydrochloric acid at 40^oC.

Kalsium karbonat berlebihan dengan 50 cm³ asid hidroklorik 0.5 mol dm^-3 pada 40^oC.

Excess calcium carbonate with 50 cm³ of 0.25 mol dm^-3 of hydrochloric acid at room temperature.

Kalsium karbonat berlebihan dengan 50 cm³ asid hidroklorik 0.25 mol dm^-3 pada suhu bilik.

Smaller size calcium carbonate with 50 cm³ of 0.5 mol dm^-3 of hydrochloric acid at room temperature.

Kalsium karbonat bersaiz lebih kecil dengan 50 cm³ asid hidroklorik 0.5 mol dm^-3 pada suhu bilik.

Excess calcium carbonate with 100 cm³ of 0.25 mol dm^-3 of hydrochloric acid at room temperature.

Kalsium karbonat berlebihan dengan 100 cm³ asid hidroklorik 0.25 mol dm^-3 pada suhu bilik.

34.

Which reaction has the highest rate?

Tindak balas manakah yang mempunyai kadar paling tinggi?

Rusting of water pipe

Pengaratan paip air

Burning of petrol in the car engine

Pembakaran petrol dalam enjin kereta

Fading of dyes on a shirt under the hot sun

Memudarkan warna baju di bawah matahari terik

Cooking chicken using microwave oven

Memasak ayam menggunakan ketuhar gelombang mikro

35.

The following equation represents decomposition reaction of hydrogen peroxide.

Persamaan berikut mewakili tindakbals penguraian hidrogen peroksida

4H₂O₂ ----------> O₂+ 2H₂O

Which method most suitable to increase the rate of reaction?

Kaedah manakah yang paling sesuai untuk meningkatkan kadar tindakbalas?

Decrease the concentration of hydrogen peroxide

Mengurangkan kepekatan hidrogen peroksida

Decrease the temperature of hydrogen peroxide

Mengurangkan suhu hidrogen peroksida

Increase the volume of hydrogen peroxide

Meningkatkan isipadu hidrogen peroksida

Added manganese (IV) oxide

Menambahkan mangan (IV) oksida

36.

Diagram above shos an energy profile diagram for a reaction.

Rajah di atas menunjukkan gambar rajah aras tenaga bagi satu tindakbalas.

Which of the following correct label of activation energy?

Antara berikut yang manakah dilabelkan dengan betul bagi tenaga pengaktifan?

37.

Which of the following correctly explain why an increase in pressure will increase the frequency of effective collection?

Antara berikut, yang manakah menerangkan dengan betul mengapa peningkatan tekanan akan meningkatkan frekuensi perlanggaran berkesan?

Decrease in activation energy

Pengurangan tenaga pengaktifan

Increases in kinetic energy

Peningkatan tenaga kinetik

Increase in particles concentration

Peninkatan kepekatan zarah-zarah

Increase in the force of attraction between particles

Peningkatan daya tarikan antara zarah-zarah

38.

Diagram shows the energy level for the reaction between elements X and Y.

Rajah menunjukkan aras tenaga bagi tindak balas antara unsur-unsur X dan Y

What is the activation energy for the reaction?

Apakah tenaga pengaktifan bagi tindak balas itu

240 kJ

160 kJ

80 kJ

60 kJ

39.

Which of the following actions will increase the initial rate of reaction between 3 g of small crushed marble chips and 25 cm3 of 1.0 mol dm-3 nitric acid?

Antara tindakan yang berikut, yang manakah akan menambah kadar tindak balas awal antara 3 g serpihan marmar yang kecil dan 25 cm3 asid nitrik 1.0 mol dm-3?

Add distilled water to the acid

Menambahkan air suling kepada asid

Increase the volume of nitric acid

Meningkatkan isipadu asid nitrik

Add concentrated nitric acid to the reaction mixture

Menambahkan asid nitrik pekat kepada campuran tindak balas

Use 3 g of large pieces of marble chips to replace 3 g of small crushed marble chips Menggunakan 3 g serpihan marmar yang besar untuk menggantikan 3 g serpihan marmar yang kecil

40.

Figure 16 shows the graph of total volume of oxygen gas released against time for the decomposition of hydrogen peroxide.

Rajah 16 menunjukkan graf bagi jumlah isipadu gas oksigen yang terbebas melawan masa untuk penguraian hidrogen peroksida.

Which of the following is the inference from the graph?

Manakah yang berikut adalah inferens daripada graf ?

I Rate of gas released at t₂ is zero/Kadar pembebasan gas pada t₂adalah sifar

II The average rate of gas released in duration t₁ is V/t₁ cm³ min^-1/Purata kadar pembebasan gas dalam tempoh t₁ ialah V/t₁cm³ min^-1

III Rate of gas released at the initial reaction is highest/ Kadar pembebasan gas pada permulaan tindak balas adalah paling tinggi

IV Decomposition of hydrogen peroxide decreases with time/Penguraian hidrogen peroksida berkurangan dengan masa.

I , II and III only

I, III and IV only

II, III and IV only

I,II ,III and IV

41.

Diagram shows a graph of volume of carbon dioxide gas againts time when 5g of marble chips is added to 50cm³ of 0.2 mol dm^-3 hydrochloric acid.

Rajah menunjukkan graf isipadu gas karbon dioksida melawan masa apabila 5g ketulan marmar dimasukkan ke dalam 50 cm³ asid hidroklorik 0.2 mol dm^-3.

At what time is the rate of reaction the highest?

Pada masa yang manakah kadar tindak balas paling tinggi?

t₁

t₂

t₃

t₄

42.

Table show three experiment conducted by a group of students to investigate the reaction between excess zinc and hydrochloric acid.

Jadual menunjukkan tiga eksperimen yang telah dilakukan oleh sekumpulan pelajar untuk menyiasat tindak balas di antara zink yang berlebihan dengan asid hidroklorik.

Based on the Diagram, which of the following represents the results of the experiments correctly?

Berdasarkan Rajah yang manakah mewakili keputusan-keputusan eksperimen dengan betul?

I - P II - Q III - R

II - P I - Q III - R

I - P III - Q II - R

III - P II - Q I - R

43.

Rajah menunjukkan dua situasi di mana air panas dan air sejuk dituangkan ke dalam dua bikar berlainan yang mengandungi jisim gula yang sama.

Gula di dalam Bikar A melarut dengan lebih cepat berbanding gula dalam Bikar B. Antara pernyataan berikut, yang manakah menerangkan situasi di atas?

Tenaga pengaktifan direndahkan

Kepekatan gula meningkat

Bilangan zarah di dalam gula meningkat

Tenaga kinetik zarah di dalam gula meningkat

44.

Diagram shows the energy profile for the following reaction:

Rajah menunjukkan profil tenaga bagi tindakbalas yang berikut:

E1, E2 and E3 represent different levels of energy respectively. If catalyst is used in the reaction, the rate of reaction will increase because the catalyst

E1, E2dan E3, masing-masing mewakili aras-aras tenaga yang berbeza. Jika mangkin digunakan dalam tindakbalas ini, kadar tindakbalas akan bertambah kerana mangkin

Increases E₁

Meningkatkan E₁

Decrease E₂

Mengurangkan E₂

Increase E₂

Meningkatkan E₂

Decrease E₃

Mengurangkan E₃

45.

Why don't all collisions between particles cause a reaction?

the particles also need to collide with a catalyst

not all the particles collide with enough energy

not all the particles collide at a high enough temperature

the particles need to collide with each other twice

46.

Icing sugar has a greater ______ _____ than a solid cube of

sugar.

Surface Area

Catalyst

Temperature

47.

The amount of something; how many particles in a volume of a mixture

Rate

Collision

Catalyst

Concentration

48.

An experiment is carried out to study the effect of concentration on the rate of reaction between sodium thiosulphate and hydrochloric acid.

Graph of the concentration of sodium thiosulphate against 1/time is as shown.

Based on the graph, what is the value of t if the experiment is repeated using sodium

thiosulphate solution 0.025 mol dm^-3.

32.3 s

50.0 s

0.020 s

0.031s

49.

The minimum amount of energy needed for colliding particles to react is called

Chemical Energy

Kinetic Energy

Activation Energy

Potential Energy

50.

Which process has the lowest rate of reaction?

Proses manakah yang mempunyai kadar tindak balas yang paling rendah?

Combustion

Pembakaran

Fermentation

Penapaian

Neutralisation

Peneutralan

Photosynthesis

Fotosintesis

Reset

Rate of reaction/Kadar tindakbalas

Total questions: 50

Worksheet time: 50mins

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