# Physical Sciences Grade 12 P2 Eastern Cape June 2024 QP > Grade 12 Physical Sciences Paper 2 question paper from the Eastern Cape June Exam 2024 (English), 19 pages. Read online or download the free PDF. - Page: https://www.hlayiso.com/library/physical-sciences-p2-qp-gr12-june-2024-english/0076c40a-be11-44c2-9e99-a430d0e59724 - Updated: 2026-09-27 - Subject: Physical Sciences - Grade: Grade 12 - Language: English - Document type: Question paper - Year: 2024 - Exam period: Eastern Cape June Exam - Paper: 2 - Curriculum: CAPS - Pages: 19 Breadcrumbs: [Home](https://www.hlayiso.com/) › [Library](https://www.hlayiso.com/library) › [Grade 12](https://www.hlayiso.com/library/grade-12) › [Physical Sciences](https://www.hlayiso.com/library/grade-12/physical-sciences) › [Physical Sciences Grade 12 P2 Eastern Cape June 2024 QP](https://www.hlayiso.com/library/physical-sciences-p2-qp-gr12-june-2024-english/0076c40a-be11-44c2-9e99-a430d0e59724) ## About this document Physical Sciences · Grade 12 · Eastern Cape June Exam · 2024 · English. Question paper, 19 pages. Read online or download the PDF. Read it free online on the page above; download the PDF from there. ## Document text Text extracted from the PDF. Layout, diagrams and tables may not survive extraction. ### Page 1 Downloaded from hlayiso.com NATIONAL SENIOR CERTIFICATE GRADE 12 JUNE 2024 PHYSICAL SCIENCES: (CHEMISTRY) P2 MARKS: 150 TIME: 3 hours This question paper consists of 19 pages, including 2 data sheets. Hosted by www.ecexams.co.za ### Page 2 Downloaded from hlayiso.com 2 PHYSICAL SCIENCES P2 (EC/JUNE 2024) INSTRUCTIONS AND INFORMATION 1. Write your name and surname in the appropriate space on the ANSWER BOOK. 2. This question paper consists of SEVEN questions. Answer ALL the questions in the ANSWER BOOK. 3. Start EACH question on a NEW page in the ANSWER BOOK. 4. Number the answers correctly according to the numbering system used in this question paper. 5. Leave ONE line between two sub-questions, for example between QUESTION 2.1 and QUESTION 2.2. 6. You may use a non-programmable calculator. 7. You may use appropriate mathematical instruments. 8. Show ALL formulae and substitutions in ALL calculations. 9. Round off your FINAL numerical answers to a minimum of TWO decimal places. 10. Give brief motivations, discussions, et cetera. where required. 11. You are advised to use the attached DATA SHEETS. 12. Write neatly and legibly. Copyright reserved Please turn over ### Page 3 Downloaded from hlayiso.com (EC/JUNE 2024) PHYSICAL SCIENCES P2 3 QUESTION 1: MULTIPLE-CHOICE QUESTIONS Various options are provided as possible answers to the following questions. Choose the answer and write only the letter (A–D) next to the question numbers (1.1 to 1.10) in the ANSWER BOOK, for example 1.11 E. 1.1 The homologous series that contain a carbon-carbon triple bond is … A alkanes. B alkenes. C alkynes. D haloalkanes. (2) 1.2 Consider the following compounds: Compounds A Pentan-1-ol B Butan-1-ol C Pentanoic acid Which ONE of the following correctly rank the above pure substances in the order of increasing strength of intermolecular forces? A Pentan-1-ol, butan-1-ol, pentanoic acid B Pentanoic acid, butan-1-ol, pentan-1-ol C Butan-1-ol, pentanoic acid, pentan-1-ol D Butan-1-ol, pentan-1-ol, pentanoic acid (2) 1.3 Consider the structural formula: O C H Which ONE of the following compounds contains the above functional group? A Propanal B Propanone C Propan-1-ol D Propanoic acid (2) Copyright reserved Please turn over ### Page 4 Downloaded from hlayiso.com 4 PHYSICAL SCIENCES P2 (EC/JUNE 2024) 1.4 2-methylpropan-1-ol can form two isomers. Which ONE of the following combinations CORRECTLY identifies the ISOMER and the TYPE OF ISOMER? NAME OF ISOMER TYPE OF ISOMER A Butan-1-ol Positional B 2-methylpropan-2-ol Chain C Butan-1-ol Functional D 2-methylpropan-2-ol Positional (2) 1.5 The conversion of CH3CHCH2 to CH3CH2CH3 is known as … A hydration. B hydrogenation. C halogenation. D hydrohalogenation. (2) 1.6 Hydrochloric acid reacts with EXCESS zinc according to the balanced equation: 2 HCℓ (aq) + Zn (s) → ZnCℓ2 (aq) + H2 (g) Which ONE of the following factors will influence the yield of H2 (g) but not on the rate of production of H2 (g)? A Temperature B Volume of HCℓ C State of division of Zn D Concentration of HCℓ (2) Copyright reserved Please turn over ### Page 5 Downloaded from hlayiso.com (EC/JUNE 2024) PHYSICAL SCIENCES P2 5 1.7 Carbonic acid, H2CO3, ionises in water in two steps. The first step of the ionisation is given by the equation: H2CO3 (aq) + H2O (ℓ) ⇌ HCO3– (aq) + H3O+ (aq) Which ONE of the following substances in the above reaction can act as an ampholyte? A H2CO3 and H2O B HCO3– and H3O+ C H2O and HCO3– D H2CO3 and HCO3– (2) 1.8 The potential energy diagram for the following reversible hypothetical reaction is given: 2 AB (g) ⇌ A2 (g) + Br2 (g) Potential energy (kJ·mol-1) R Q P Time Consider the following statements regarding the energy diagram. I Δ H for the forward reaction is positive II Catalyst would lower P–Q III Reversible reaction is exothermic Which of the statement(s) above is/are TRUE? A I only B I and II only C I and III only D II and III only (2) Copyright reserved Please turn over ### Page 6 Downloaded from hlayiso.com 6 PHYSICAL SCIENCES P2 (EC/JUNE 2024) 1.9 Consider the following reversible reaction at equilibrium in a sealed container: C (s) + CO2 (g) ⇌ 2 CO (g) The volume inside the container is decreased while the temperature remains constant. Which ONE of the following combinations are CORRECT regarding the amount of CO and the rate at which the new equilibrium is reached? AMOUNT OF CO REACTION RATE A Higher Lower B Lower Higher C Higher Higher D Lower Lower (2) 1.10 Consider two solutions of Ba(OH)2 (aq) and KOH (aq) each with a concentration of 0,1 mol·dm-3. Consider the following statements regarding the two solutions. I Both KOH and Ba(OH)2 can be regarded as Arrhenius bases II Ba(OH)2 will produce a higher concentration of OH– than KOH when it dissociates III Double the amount of HCℓ is needed to neutralise KOH than Ba(OH)2 Which of the statement(s) above is/are TRUE? A I only B I and II only C II and III only D I and III only (2) [20] Copyright reserved Please turn over ### Page 7 Downloaded from hlayiso.com (EC/JUNE 2024) PHYSICAL SCIENCES P2 7 QUESTION 2 (Start on a new page.) The table below shows organic molecules A to E from different homologous series. A CH3Cℓ B CH3 CH3CH CH C CH3 H C Butanone CH3 H CH3 CH2CH C C CH3 E CXHYO2 D O H CH3 H 2.1 Define homologous series. (2) 2.2 Write down the LETTER that represents the following compounds: 2.2.1 Hydrocarbon (1) 2.2.2 Haloalkane (1) 2.2.3 Alkene (1) 2.2.4 The compound that contains the carbonyl group that is bonded to two saturated carbon atoms (1) 2.3 Is compound D a PRIMARY, SECONDARY OR TERTIARY ALCOHOL? Give a reason for the answer. (2) 2.4 Write down the: 2.4.1 General formula for the homologous series to which compound B belong. (1) 2.4.2 IUPAC name of compound B (2) 2.4.3 IUPAC name of compound D (3) 2.5 Compound C has a functional isomer. 2.5.1 Define the term functional isomer. (2) 2.5.2 Draw the STRUCTURAL FORMULA of the functional isomer of compound C. (2) Copyright reserved Please turn over ### Page 8 Downloaded from hlayiso.com 8 PHYSICAL SCIENCES P2 (EC/JUNE 2024) 2.6 Compound E (CXHYO2) reacts with alcohol P in the presence of concentrated sulphuric acid (H2SO4) to produce organic compound Q as shown by the incomplete equation below: CXHYO2 + alcohol P → organic compound Q + H2O The percentage composition of compound Q is: Organic compound Q Carbon Hydrogen Oxygen 58,82% 9,81% 31,37% The molecular mass of the compound Q is EQUAL to the formula mass. 2.6.1 Write down the name of the type of reaction that occurred. (1) 2.6.2 Determine, by calculation, the molecular formula of organic compound Q. (5) Compound E (CXHYO2) has a molecular mass of 74 g·mol-1. 2.6.3 Determine the compound E (CXHYO2) and write down its IUPAC name. (4) 2.6.4 Determine the organic compound Q that was produced, write down its IUPAC name and STRUCTURAL FORMULA. (6) [34] Copyright reserved Please turn over ### Page 9 Downloaded from hlayiso.com (EC/JUNE 2024) PHYSICAL SCIENCES P2 9 QUESTION 3 (Start on a new page.) An investigation is carried out to determine the effect of branching on the boiling points of an organic compounds. Three PRIMARY ALCOHOLS that each contains 5 carbon atoms are used during this investigation. Equal volumes of each alcohol are heated separately in a water bath. 180 150 Boiling point (°C) 120 90 60 30 3.1 Define boiling point. (2) 3.2 What property of alcohols requires them to be heated in a water bath? (1) 3.3 Write down the boiling point of alcohol 1. (1) 3.4 Is this a fair investigation? Write only YES or NO. Give a reason for the answer. (2) 3.5 Give the IUPAC name of alcohol 2. (2) 3.6 Which alcohol has the shortest chain length? Write down only ALCOHOL 1, ALCOHOL 2 or ALCOHOL 3. (1) 3.7 Fully explain the answer to QUESTION 3.6. (3) Copyright reserved Please turn over ### Page 10 Downloaded from hlayiso.com 10 PHYSICAL SCIENCES P2 (EC/JUNE 2024) 3.8 A second investigation is carried out to determine the effect of intermolecular forces on the vapour pressure. The table below summarises the results from two organic compounds. COMPOUND VAPOUR PRESSURE AT 20 °C (kPa) A Butanone 9,47 B Butan-1-ol 0,58 3.8.1 Define vapour pressure. (2) 3.8.2 Explain the difference in vapour pressures by referring to the intermolecular forces involved. (4) 3.8.3 Will the vapour pressure of the above compounds INCREASE, DECREASE or REMAIN THE SAME at a higher temperature? (1) [19] Copyright reserved Please turn over ### Page 11 Downloaded from hlayiso.com (EC/JUNE 2024) PHYSICAL SCIENCES P2 11 QUESTION 4 (Start on a new page.) 4.1 Consider the flow diagram showing organic reactions given below. O-H Reaction 1 Organic compound P + H2O (major product) CH3CH2CHCH3 Reaction 2 A C4C4H9Br Consider REACTION 1. Write down the: C4 4.1.1 Name of the type of elimination reaction (1) 4.1.2 Name or formula of the inorganic reagent needed (1) 4.1.3 Balanced equation using STRUCTURAL FORMULAE for the organic compounds (4) Consider REACTION 2. Write down the: 4.1.4 Name the type of reaction taking place (1) 4.1.5 STRUCTURAL FORMULA and IUPAC name for the major product formed (4) Consider REACTION 3. Write down the: 4.1.6 TWO reaction conditions needed (2) Copyright reserved Please turn over ### Page 12 Downloaded from hlayiso.com 12 PHYSICAL SCIENCES P2 (EC/JUNE 2024) 4.2 Octane can be cracked according to the incomplete equation: C8H18 → C4HY + C4HZ The two STRAIGHT CHAIN organic compounds, C4HY and C4HZ, are now passed through bromine water (Br2 (aq)) at room temperature in a darken room. The following observations are made: EXPERIMENT 1 EXPERIMENT 2 Syringe Syringe C4HY C4HZ Br2 (aq) Br2 (aq) When compound C4HY is bubbled When compound C4HZ is bubbled through the bromine water, no changes through the bromine water, the are observed. yellowish colour of the bromine water immediately turns colourless and bubbles are observed in the flask. 4.2.1 Define cracking. (2) 4.2.2 Give a reason why experiments 1 and 2 is carried out in a darken room. (1) 4.2.3 Which compound, C4HY or C4HZ, is UNSATURATED? Give a reason for the answer. (2) Compound C4HY undergoes the following reactions: I C4HY + Cℓ2 UV-light Primary haloalkane + HCℓ II Primary haloalkane + NaOH (conc) C4HZ + NaCℓ + H2O Write down the: 4.2.4 STRUCTURAL FORMULA for compound C4HZ (2) 4.2.5 Combustion reaction of compound C4HY using MOLECULAR FORMULAE (3) [23] Copyright reserved Please turn over ### Page 13 Downloaded from hlayiso.com (EC/JUNE 2024) PHYSICAL SCIENCES P2 13 QUESTION 5 (Start on a new page.) A group of learners use the reaction between magnesium carbonate (MgCO3) and EXCESS hydrochloric acid (HCℓ) to investigate some of the factors that affect the reaction rate. The balanced equation for the reaction is: MgCO3 (aq) + 2 HCℓ (aq) MgCℓ2 (aq) + H2O (ℓ) + CO2 (g) The learners used the apparatus illustrated below. gas syringe gas HCℓ MgCO3 The table below summarises the reaction conditions: REACTION CONDITIONS CONCENTRATION STATE OF INITIAL EXPERIMENT -3 OF HCℓ (mol·dm ) DIVISION OF TEMPERATURE (°C) MgCO3 1 0,9 Powder 25 2 0,9 Powder 30 3 0,9 Lumps 30 5.1 Define reaction rate. (2) 5.2 Write down the independent variable for the comparison between experiment 1 and 2. (1) 5.3 Experiment 2 and 3 is now compared. 5.3.1 Which experiment, 2 or 3, will have the highest reaction rate? (1) 5.3.2 Explain the answer to QUESTION 5.3.1 by referring to the collision theory. (3) Copyright reserved Please turn over ### Page 14 Downloaded from hlayiso.com 14 PHYSICAL SCIENCES P2 (EC/JUNE 2024) 5.4 The learners measured the rate at which CO2 was produced in experiment 2 and found it to be 0,25 g·min-1. It took 10,44 minutes to measure the time taken for the reaction to reach completion. Calculate the: 5.4.1 Mass of MgCO3 that was used (6) 5.4.2 Molar volume of CO2 if 1,47 dm3 of CO2 was released (3) 5.5 The graph below represents Maxwell-Boltzmann distribution curve for CO2(g) produced experiment 1. Number of CO2 molecules Kinetic energy Redraw the graph in your ANSWER BOOK. Clearly label the curve as A. On the same set of axes, sketch the curve that will be obtained for CO2(g) if the mass of MgCO3 used is increased. Label this curve as B. (2) [18] Copyright reserved Please turn over ### Page 15 Downloaded from hlayiso.com (EC/JUNE 2024) PHYSICAL SCIENCES P2 15 QUESTION 6 (Start on a new page.) 6.1 Initially 1 mol of sulphur dioxide SO2 (g) and oxygen O2 (g) are allowed to react in a sealed container according to the balanced equation: 2 SO2(g) + O2(g) ⇌ 2 SO3 (g) The graph below shows the change in amounts of reactants and products over time. Graph is NOT drawn to scale. AMOUNT OF SUBSTANCE VS TIME GRAPH SO3 1 Amount of substance (mol) 0,54 X 0,075 Y 0 t1 t2 t3 Time 6.1.1 State Le Chatelier’s principle in words. (2) 6.1.2 How will the rate of the forward reaction compare to the rate of the reverse reaction between t1 and t2? Choose from HIGHER THAN, LOWER THAN or EQUAL TO. Give a reason for the answer. (2) 6.1.3 Which curve, X or Y, represent SO2? Give a reason for the answer. (2) Copyright reserved Please turn over ### Page 16 Downloaded from hlayiso.com 16 PHYSICAL SCIENCES P2 (EC/JUNE 2024) The temperature of the reaction mixture was decreased at t2. 6.1.4 Is the heat of the reaction (ΔH) POSITIVE or NEGATIVE for the forward reaction? (1) 6.1.5 Explain the answer to QUESTION 6.1.4 by referring to Le Chatelier’s principle. (3) 6.2 2,5 mol of NOCℓ was initially placed in a 1,5 dm 3 sealed container at 400 °C. After the equilibrium was established, it was found that 28% of the NOCℓ dissociated according to the balanced equation: 2 NOCℓ (g) ⇌ 2 NO (g) + Cℓ2 (g) 6.2.1 Calculate the equilibrium constant, Kc-value at 400 °C. (7) 6.2.2 More NOCℓ is added to the equilibrium mixture. How will this change affect the equilibrium constant, Kc? Write down only INCREASES, DECREASES or REMAINS THE SAME. Give a reason for your answer. (2) [19] Copyright reserved Please turn over ### Page 17 Downloaded from hlayiso.com (EC/JUNE 2024) PHYSICAL SCIENCES P2 17 QUESTION 7 (Start on a new page.) 7.1 The balanced equation below represents the first step of the ionisation reaction of sulphuric acid (H2SO4): H2SO4 (aq) + H2O(ℓ) ⇌ HSO4– (aq) + H3O+ (aq) 7.1.1 Define an acid according to the Arrhenius theory. (2) Write down the: 7.1.2 FORMULAE of the TWO BASES in the above reaction (2) 7.1.3 Balanced chemical equation for the reaction between sulphuric acid (H2SO4) and potassium hydroxide (KOH) (3) 7.2 A standard solution of sodium hydroxide (NaOH) is prepared by dissolving 3,812 g to make a 100 cm3 NaOH solution. 7.2.1 Calculate the concentration of sodium hydroxide (NaOH) solution. (3) Household vinegar contains x % ethanoic acid (CH3COOH) by mass. 25 cm3 of vinegar reacts with 21,8 cm3 sodium hydroxide (NaOH) solution prepared in QUESTION 7.2.1. The balanced equation is: CH3COOH (aq) + NaOH (aq) → CH3COONa (aq) + H2O(ℓ) 7.2.2 Calculate the percentage mass of the ethanoic acid (value of x) found in the vinegar if 1 cm3 of household vinegar has a mass of 1 g. (7) [17] TOTAL: 150 Copyright reserved Please turn over ### Page 18 Downloaded from hlayiso.com 18 PHYSICAL SCIENCES P2 (EC/JUNE 2024) NATIONAL SENIOR CERTIFICATE NASIONALE SENIOR SERTIFIKAAT DATA FOR PHYSICAL SCIENCES GRADE 12 PAPER 2 (CHEMISTRY) GEGEWENS VIR FISIESE WETENSKAPPE GRAAD 12 VRAESTEL 2 (CHEMIE) TABLE 1: PHYSICAL CONSTANTS/TABEL 1: FISIESE KONSTANTES NAME/NAAM SYMBOL/SIMBOOL VALUE/WAARDE Standard pressure Standaarddruk p 1,013 x 105 Pa Molar gas volume at STP Molêre gasvolume teen STD Vm 22,4 dm3∙mol-1 Standard temperature Standaardtemperatuur Tθ 273 K Charge on electron Lading op elektron e -1,6 x 10-19 C Avogadro’s constant NA 6,02 x 1023 mol-1 Avogadro se konstante TABLE 2: FORMULAE/TABEL 2: FORMULES m n m n= M or/of c = V or/of c = MV pH= -log[H3O+] N ca Va na Kw = [H3O+][OH-] = 1x10-14 n= N or/of = A cb Vb nb at/by 298 K V n= V m Copyright reserved Please turn over ### Page 19 Downloaded from hlayiso.com (EC/JUNE 2024) PHYSICAL SCIENCES P2 19 TABLE 3: THE PERIODIC TABLE OF ELEMENTS/TABEL 3: DIE PERIODIEKE TABEL VAN ELEMENTE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 (I) (II) Atoomgetal (III) (IV) (V) (VI) (VII) (VIII) KEY/ SLEUTEL 1 Atomic number 2 2,1 H He 1 29 4 3 4 Elektronegatiwiteit Simbool 5 6 7 8 9 10 1,0 1,5 1,9 2,0 2,5 3,0 3,5 4,0 Li Be Electronegativity Cu Symbol B C N O F Ne 7 9 11 12 14 16 19 20 11 12 63,5 13 14 15 16 17 18 0,9 Na 1,2 Mg 1,5 Aℓ 1,8 Si 2,1 P 2,5 S 3,0 Cℓ Ar Benaderde relatiewe atoommassa 23 24 27 28 31 32 35,5 40 19 20 21 22 23 24 25 26 relative Approximate 27 atomic 28 mass29 30 31 32 33 34 35 36 0,8 K 1,0 Ca 1,3 Sc 1,5Ti 1,6 V 1,6 Cr 1,5Mn 1,8 Fe Co 1,8 Ni Cu 1,8 1,9 1,6 Zn 1,6 Ga 1,8 Ge 2,0 As 2,4 Se 2,8 Br Kr 39 40 45 48 51 52 55 56 59 59 63,5 65 70 73 75 79 80 84 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 0,8 Rb 1,0 Sr 1,2 Y 1,4Zr Nb 1,8 Mo 1,9Tc 2,2 Ru Rh 2,2 Pd Ag 2,2 1,9 1,7 Cd 1,7 In 1,8 Sn 1,9 Sb 2,1 Te 2,5 I Xe 86 88 89 91 92 96 101 103 106 108 112 115 119 122 128 127 131 55 56 57 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 0,7 Cs 0,9 Ba La 1,6Hf Ta W Re Os Ir Pt Au Hg 1,8 Tℓ 1,8 Pb 1,9 Bi 2,0 Po 2,5 At Rn 133 137 139 179 181 184 186 190 192 195 197 201 204 207 209 87 88 89 0,7 Fr 0,9 Ra Ac 226 58 59 60 61 62 63 64 65 66 67 68 69 70 71 Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu 140 141 144 150 152 157 159 163 165 167 169 173 175 90 91 92 93 94 95 96 97 98 99 100 101 102 103 Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr 232 238 Copyright reserved ## Related documents - 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