WorksheetsSPM Chemistry Perak Trial Set 4
Total questions: 10
Worksheet time: 23mins
Calculate the mass of glacial sulphuric acid needed to prepare standard solution above.
Relative atomic mass : H = 1 , S = 32, O = 16
19.6 g
1.96 g
19.4 g
1.94 g
The reaction between hydrochloric acid and marble chips produces carbon dioxide gas, CO2. Table 4 shows the total volume of gas collected at regular intervals in a reaction.
What is the average rate of reaction?
0.12 cm3 s-1
0.16 cm3 s-1
0.18 cm3 s-1
0.22 cm3 s-1
Cell notation for a voltaic cell with copper and magnesium metal as electrodes are as follows:
Mg | Mg2+ || Cu2+ | Cu
What is cell voltage value?
[Standard electrode potential value Mg2+ = -2.38 V; Cu2+ = +0.34 V]
+2.02V
-2.02V
+2.72V
-2.72V
Diagram 14 shows the structural formula of an unsaturated hydrocarbon P.
Which of the following is the isomer of hydrocarbon P?
But-2-ene
2-ethylpropene
2-methylbut-1-ene
2-methylbut-2-ene
Diagram 15 shows an energy level of a displacement reaction.
What is the increase in temperature when 50 cm3 of 0.25 mol dm-3 iron(II) chloride solution is reacted with excess magnesium powder?
[Specific heat capacity of the solution = 4.2 J g-1 oC-1]
12 oC
16 oC
22 oC
24 oC
Diagram 16 shows the situation that Ahmad has been experiencing for a long time.
He has problem to carry out the agricultural activities.
Which substance can be used to solve his problem?
Lake water
Table salt
Wood ash
Rice husk
Diagram 17 shows electrolytic cell.
Which of the following are produced at the anode of Cell A and Cell B?
Cell A: Oxygen
Cell B: Chlorine
Cell A: Oxygen
Cell B: Oxygen
Cell A: Nitrigen dioxide
Cell B: Chlorine
Cell A: Copper
Cell B: Oxygen
Zinc strips are attached to underground iron pipelines. The zinc strips need to be replaced often as they become thinner due to corrosion. Apart from zinc, what other metal is suitable to be used as the sacrificial metal?
Lead
Silver
Copper
Magnesium
Pectin is added to strawberry jam. What is its function?
As a sweetener
Gives red colouring
Ensures the jam lasts longer
Gives the jam a smooth texture
The ion X2+ has 27 electrons. If the ion has nucleon number 64, determine the number of neutrons in ion X2+?
39
37
35
33
