WorksheetsKADAR TINDAK BALAS F4
Total questions: 10
Worksheet time: 6mins
The reaction between zinc and hydrochloric acid is represented by the following chemical equation:
Tindakbalas antara zink dengan asid hidroklorik diwakili oleh persamaan kimia berikut
Zn + 2HCl → ZnCl2 + H2
Which of the following methods is the most suitable to determine the rate of the above reaction?
Antara kaedah berikut yang manakah paling sesuai untuk menentukan kadar bagi tindak balas di atas
Determine the change in temperature of the solution with time Menentukan perubahan suhu larutan berkadar dengan masa
Determine the change in the concentration of zinc chloride with time
Menentukan perubahan kepekatan zink berkadar dengan masa
Determine the volume of hydrogen gas given off with time
Menentukan isipadu gas hidrogen yang dihasilkan berkadar dengan masa.
Determine the change in the concentration of hydrochloric acid with time
Menentukan perubahan kepekatan asid hidroklorik berkadar dengan masa,
The graph shows the volume of hydrogen gas produced against time for the reaction between zinc and sulphuric acid.
Graf menunjukkan isipadu gas hydrogen yang dibebaskan melawan masa bagi tindakbalas antara zink dan asid sulfurik..
The gradient of the graph decreases with time because
Kecerunan graf berkurang dengan masa kerana
catalyst is not used.
mangkin tidak digunakan
volume of mixture decreases
isipadu campuran berkurang
temperature of reaction does not change
suhu tindak balas tidak berubah
concentration of sulphuric acid decreases
kepekatan asid sulfurik berkurang
Which factor does not affect the rate of reaction?
Faktor manakah yang tidak mempengaruhi kadar tindak balas?
Volume of reactant
Isipadu bahan tindak balas
Concentration of reactant
Kepekatan bahan tindak balas
Temperature of reactant
Suhu bahan tindak balas
Size of solid reactant
Saiz pepejal bahan tindak balas
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
Magnesium reacts with hydrochloric acid according to the equation below:
Magnesium bertindak balas dengan asid hidroklorik berdasarkan persamaan di bawah:
Mg (s) + 2HCl (aq) ----> MgCl2 (aq) + H2 (g)
Which of the following graphs of volume (V) of hydrogen gas against time (t) is correct?
Manakah antara graf isipadu(V) gas hydrogen melawan masa(t) berikut adalah betul?
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
Which of the following factors does not affect the rate of a reaction?
Antara faktor-faktor berikut, yang manakah tidak mempengaruhi kadar sesuatu tindak balas?
The presence of a catalyst
Kehadiran mangkin.
The concentration of the reactant
Kepekatan bahan tindak balas
The total surface area of the solid reactant
Jumlah luas permukaan bahan tindak balas pepejal
The mass of the solid reactant
Jisim bahan tindak balas pepejal
The rate of chemical reaction can be determined by measuring
Kadar tindak balas boleh ditentukan dengan mengukur
I the volume of gas liberated per unit time.
isipadu gas dibebaskan per unit masa.
II the formation of precipitate per unit time.
pembentukan mendakan per unit masa.
III the change of colour per unit time.
perubahan warna per unit masa.
IV the change of the size of solid per unit time.
perubahan saiz pepejal per unit masa
I and III only
I dan III sahaja
I,II and III only
I,II dan III sahaja
II,III and IV only
II,III dan IV sahaja
I,II,III and IV
I,II III dan IV
The following information shows the effect of a particular factor on the rate of reaction.
Maklumat berikut menunjukkan kesan suatu faktor yang mempengaruhi kadar tindak balas.
Adding a catalyst.
Menambah mangkin
Increasing temperature of reactants
Menaikkan suhu bahan tindak balas
Increasing the concentration of reactants.
Menambah kepekatan bahan tindak balas
Increasing total surface area of reactants.
Menambah jumlah luas permukaan bahan tindak balas
Figure 15 shows the graph of total volume of carbon dioxide against time for the reaction of a metal carbonate with dilute acid for experiment P and experiment Q.
Rajah 15 menunjukkan graf bagi jumlah isipadu karbon dioksida melawan masa bagi tindak balas karbonat logam dengan asid cair bagi eksperimen P dan
eksperimen Q.
Which of the following explains the differences between both curves from the experiments?
Antara berikut, yang manakah menerangkan perbezaan antara dua lengkuk bagi eksperimen tersebut?
I Temperature of acid in experiment P is higher than in experiment Q
Suhu asid dalam eksperimen P lebih tinggi daripada dalam eksperimen Q
II Catalyst is used in experiment P but not in experiment Q
Mangkin digunakan dalam eksperimen P tetapi tidak dalam eksperimen Q
III Quantities of metal carbonate and acid used in experiment P are more than that in experiment Q
Kuantiti karbonat logam dan asid dalam eksperimen P melebihi dalam eksperimen Q
IV Small particle size of metal carbonate is used in experiment P and big particle size of metal carbonate is used in experiment Q
Saiz zarah karbonat logam yang kecil digunakan dalam eksperimen P dan saiz zarah karbonat logam yang besar digunakan dalam eksperimen Q
III and IV only
I , II and III only
I, II and IV only
I, II , III and IV
