Technical Sciences Grade 12 P2 NSC November Mock 2026 QP

Mock hlayiso mock exams Practice Series: Grade 12 NSC Preparation WWW.HLAYISO.COM NATIONAL SENIOR CERTIFICATE GRADE 12 TECHNICAL SCIENCES P2 MOCK EXAMINATION 2026 MARKS: 75 TIME: 1½ hours This question paper consists of 9 pages and 4 data sheets. Copyright reserved Please turn over

Technical Sciences/P2 2 Hlayiso/Mock 2026 NSC Mock INSTRUCTIONS AND INFORMATION 1. Write your centre number and examination number in the appropriate spaces on the ANSWER BOOK. 2. This question paper consists of SIX 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 subquestions, e.g. between QUESTION 2.1 and QUESTION 2.2. 6. You may use a non-programmable calculator. 7. You are advised to use the attached DATA SHEETS. 8. Round off your FINAL numerical answers to a minimum of TWO decimal places. 9. Give brief motivations, discussions, etc. where required. 10. Write neatly and legibly. Copyright reserved Please turn over

Technical Sciences/P2 3 Hlayiso/Mock 2026 NSC Mock 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 1.5) in the ANSWER BOOK, e.g. 1.6 D. 1.1 Which ONE of the following compounds is an UNSATURATED hydrocarbon? A C 3 H8 B C 3 H6 C C3 H7 OH D CH3 COOH (2) 1.2 The IUPAC name of the compound with the condensed structural formula CH3 CH(Cℓ)CH2 CH3 is … A 3-chlorobutane. B 1-chlorobutane. C 2-chloropropane. D 2-chlorobutane. (2) 1.3 Which ONE of the following types of intermolecular forces occurs between ethanol molecules, but NOT between ethane molecules? A Hydrogen bonds B London forces C Covalent bonds D Ionic bonds (2) 1.4 In a galvanic cell, oxidation takes place at the … A cathode, which is the positive electrode. B anode, which is the positive electrode. C anode, which is the negative electrode. D cathode, which is the negative electrode. (2) Copyright reserved Please turn over

Technical Sciences/P2 4 Hlayiso/Mock 2026 NSC Mock 1.5 Biodiesel is an alternative fuel that is produced mainly from … A crude oil. B vegetable oils and animal fats. C coal. D natural gas. (2) [10] Copyright reserved Please turn over

Technical Sciences/P2 5 Hlayiso/Mock 2026 NSC Mock QUESTION 2 (Start on a new page.) The letters A to F in the table below represent six organic compounds. H H A CH3 CH2 CH(CH3 )CH2 CH3 B H C C C C H H H H H H H O C Propyl ethanoate D H C C C O H H H E 2-bromo-2-methylpropane F CH3 CH2 CH2 CH2 OH 2.1 Define the term homologous series. (2) 2.2 Write down the LETTER that represents a compound that: 2.2.1 Is a haloalkane (1) 2.2.2 Contains a carboxyl group (1) 2.2.3 Is unsaturated (1) 2.3 Write down the IUPAC name of compound A. (2) 2.4 Write down the IUPAC name of compound B. (2) 2.5 Refer to compound B and write down its: 2.5.1 Molecular formula (1) 2.5.2 General formula of the homologous series to which it belongs (1) 2.6 Compound C is an ester. 2.6.1 Draw the STRUCTURAL FORMULA of compound C. (2) 2.6.2 Write down the IUPAC name of the ALCOHOL that is used to prepare compound C. (1) [14] Copyright reserved Please turn over

Technical Sciences/P2 6 Hlayiso/Mock 2026 NSC Mock QUESTION 3 (Start on a new page.) Learners investigate the boiling points of three organic compounds with similar molar masses. Their results are shown in the table below. COMPOUND MOLAR MASS (g·mol–1 ) BOILING POINT (◦ C) A Butane 58 –0,5 B Propan-1-ol 60 97 C Ethanoic acid 60 118 3.1 Define the term boiling point. (2) 3.2 Give a reason why this is a fair comparison. (1) 3.3 Write down the independent variable in this investigation. (1) 3.4 Explain the difference between the boiling points of compounds A and B by referring to the TYPE and STRENGTH of the intermolecular forces and the ENERGY needed. (3) 3.5 Which compound (A, B or C) has the HIGHEST vapour pressure at room temperature? (1) 3.6 Give a reason for the answer to QUESTION 3.5. (2) 3.7 Both compounds B and C have hydrogen bonds between their molecules. Explain why compound C has a higher boiling point than compound B. (2) [12] Copyright reserved Please turn over

Technical Sciences/P2 7 Hlayiso/Mock 2026 NSC Mock QUESTION 4 (Start on a new page.) The flow diagram below shows reactions in which propene is used as the starting compound. Compound X Compound Y (an alcohol) 2 Reac tion a ction H2 O 1 Re r /H S 2 O HB 4 H H H C C C H H H Propene Re n3 act eactio st ion 4 R taly / ca H2 Propane Polypropene Reaction 5: excess O2 CO2 + H2 O 4.1 Write down the TYPE of reaction represented by: 4.1.1 Reaction 1 (1) 4.1.2 Reaction 3 (1) 4.2 Compound Y is the MAJOR product of reaction 2. Write down the: 4.2.1 IUPAC name of compound Y (2) 4.2.2 STRUCTURAL FORMULA of compound Y (2) 4.3 Write down the NAME or FORMULA of a catalyst that can be used in reaction 3. (1) 4.4 Use MOLECULAR FORMULAE to write down a balanced chemical equation for reaction 5. (3) 4.5 Reaction 4 produces the polymer polypropene. 4.5.1 Define the term polymer. (2) 4.5.2 Write down the type of polymerisation that takes place in reaction 4. (1) 4.5.3 State ONE everyday use of polypropene. (1) [14] Copyright reserved Please turn over

Technical Sciences/P2 8 Hlayiso/Mock 2026 NSC Mock QUESTION 5 (Start on a new page.) A small factory in Ekurhuleni electroplates steel keys with nickel to protect them. The simplified diagram below shows the cell that is used. Electrode P is the steel key and electrode Q is a bar of pure nickel. The electrolyte is a nickel(II) sulphate solution, NiSO4 (aq). DC source Q P NiSO4 (aq) 5.1 Define the term electrolytic cell. (2) 5.2 Which electrode, P or Q, must be connected to the NEGATIVE terminal of the DC source? (1) 5.3 Write down the half-reaction that takes place at electrode P. (2) 5.4 Write down the half-reaction that takes place at electrode Q. (2) 5.5 How will the concentration of the Ni2+ (aq) ions in the electrolyte change while the cell is in operation? Write down only INCREASES, DECREASES or REMAINS THE SAME. (1) 5.6 Explain the answer to QUESTION 5.5. (2) 5.7 Give TWO reasons, other than improving its appearance, why the steel key is electroplated with nickel. (2) [12] Copyright reserved Please turn over

Technical Sciences/P2 9 Hlayiso/Mock 2026 NSC Mock QUESTION 6 (Start on a new page.) Learners set up the galvanic cell shown below under standard conditions. An aluminium electrode is placed in a solution containing Aℓ3+ (aq) ions, and a copper electrode is placed in a solution containing Cu2+ (aq) ions. V X Aℓ Cu Aℓ3+ (aq) Cu2+ (aq) 6.1 Define the term galvanic cell. (2) 6.2 Write down ONE function of component X. (1) 6.3 Which electrode, Aℓ or Cu, is the ANODE? (1) 6.4 Write down the half-reaction that takes place at the anode. (2) 6.5 Write down the cell notation for this cell. (3) 6.6 Calculate the initial emf of the cell. (4) [13] TOTAL: 75 Copyright reserved

Technical Sciences/P2 1 Hlayiso/Mock 2026 NSC Mock DATA FOR TECHNICAL SCIENCES GRADE 12 PAPER 2 TABLE 1: PHYSICAL CONSTANTS NAME SYMBOL VALUE Standard pressure pθ 1,01× 105 Pa Standard temperature Tθ 0 °C / 273 K TABLE 2: FORMULAE Emf Eθcell = Eθcathode – Eθanode or Ecell = Ereduction – Eθoxidation θ θ or Ecell = Eoxidising agent – Eθreducing agent θ θ Copyright reserved Please turn over

Technical Sciences/P2 2 Hlayiso/Mock 2026 NSC Mock TABLE 3: THE PERIODIC TABLE OF ELEMENTS 1 2 13 14 15 16 17 18 (I) (II) 3 4 5 6 7 8 9 10 11 12 (III) (IV) (V) (VI) (VII) (VIII) 1 2 Atomic number 2,1 H He 1 KEY 4 29 3 4 5 6 7 8 9 10 1,0 1,5 Electronegativity 1,9 Cu Symbol 2,0 2,5 3,0 3,5 4,0 Li Be B C N O F Ne 7 9 63,5 11 12 14 16 19 20 11 12 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 Approximate relative atomic mass 23 24 27 28 31 32 35,5 40 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 0,8 K 1,0 Ca 1,3 Sc 1,5 Ti 1,6 V 1,6 Cr 1,5 Mn 1,8 Fe 1,8 Co 1,8 Ni 1,9 Cu 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 1,4 Zr Nb 1,8 Mo 1,9 Tc 2,2 Ru 2,2 Rh 2,2 Pd 1,9 Ag 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 1,6 Hf 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 Please turn over

Technical Sciences/P2 3 Hlayiso/Mock 2026 NSC Mock TABLE 4A: STANDARD REDUCTION POTENTIALS Half-reactions Eθ (V) F2 (g) + 2e– ⇌ 2F– + 2,87 Co3+ + e– ⇌ Co2+ + 1,81 H2 O2 + 2H+ + 2e– ⇌ 2H2 O + 1,77 MnO–4 + 8H+ + 5e– ⇌ Mn2+ + 4H2 O + 1,51 Cℓ2 (g) + 2e– ⇌ 2Cℓ– + 1,36 Cr2 O2– + – 3+ 7 + 14H + 6e ⇌ 2Cr + 7H2 O + 1,33 + – O2 (g) + 4H + 4e ⇌ 2H2 O + 1,23 MnO2 + 4H+ + 2e– ⇌ Mn2+ + 2H2 O + 1,23 Pt2+ + 2e– ⇌ Pt + 1,20 Br2 (ℓ) + 2e– ⇌ 2Br– + 1,07 NO–3 + 4H+ + 3e– ⇌ NO(g) + 2H2 O + 0,96 Hg2+ + 2e– ⇌ Hg(ℓ) + 0,85 Ag+ + e– ⇌ Ag + 0,80 NO3 + 2H+ + e– ⇌ NO2 (g) + H2 O – + 0,80 Fe3+ + e– ⇌ Fe2+ + 0,77 O2 (g) + 2H+ + 2e– ⇌ H2 O2 + 0,68 Increasing strength of oxidising agents I2 + 2e– ⇌ 2I– Increasing strength of reducing agents + 0,54 Cu+ + e– ⇌ Cu + 0,52 SO2 + 4H+ + 4e– ⇌ S + 2H2 O + 0,45 2H2 O + O2 + 4e– ⇌ 4OH– + 0,40 Cu2+ + 2e– ⇌ Cu + 0,34 SO4 + 4H+ + 2e– ⇌ SO2 (g) + 2H2 O 2– + 0,17 Cu2+ + e– ⇌ Cu+ + 0,16 Sn4+ + 2e– ⇌ Sn2+ + 0,15 S + 2H+ + 2e– ⇌ H2 S(g) + 0,14 2H+ + 2e– ⇌ H2 (g) 0,00 Fe3+ + 3e– ⇌ Fe – 0,06 Pb2+ + 2e– ⇌ Pb – 0,13 Sn2+ + 2e– ⇌ Sn – 0,14 Ni2+ + 2e– ⇌ Ni – 0,27 Co2+ + 2e– ⇌ Co – 0,28 Cd2+ + 2e– ⇌ Cd – 0,40 Cr3+ + e– ⇌ Cr2+ – 0,41 Fe2+ + 2e– ⇌ Fe – 0,44 Cr3+ + 3e– ⇌ Cr – 0,74 Zn2+ + 2e– ⇌ Zn – 0,76 2H2 O + 2e– ⇌ H2 (g) + 2OH– – 0,83 Cr2+ + 2e– ⇌ Cr – 0,91 Mn2+ + 2e– ⇌ Mn – 1,18 Aℓ3+ + 3e– ⇌ Aℓ – 1,66 Mg2+ + 2e– ⇌ Mg – 2,36 Na+ + e– ⇌ Na – 2,71 Ca2+ + 2e– ⇌ Ca – 2,87 Sr2+ + 2e– ⇌ Sr – 2,89 Ba2+ + 2e– ⇌ Ba – 2,90 Cs+ + e– ⇌ Cs – 2,92 K+ + e– ⇌ K – 2,93 Li+ + e– ⇌ Li – 3,05 Copyright reserved Please turn over

Technical Sciences/P2 4 Hlayiso/Mock 2026 NSC Mock TABLE 4B: STANDARD REDUCTION POTENTIALS Half-reactions Eθ (V) Li+ + e– ⇌ Li – 3,05 K+ + e– ⇌ K – 2,93 Cs+ + e– ⇌ Cs – 2,92 Ba2+ + 2e– ⇌ Ba – 2,90 Sr2+ + 2e– ⇌ Sr – 2,89 Ca2+ + 2e– ⇌ Ca – 2,87 Na+ + e– ⇌ Na – 2,71 Mg2+ + 2e– ⇌ Mg – 2,36 Aℓ3+ + 3e– ⇌ Aℓ – 1,66 Mn2+ + 2e– ⇌ Mn – 1,18 Cr2+ + 2e– ⇌ Cr – 0,91 2H2 O + 2e– ⇌ H2 (g) + 2OH– – 0,83 Zn2+ + 2e– ⇌ Zn – 0,76 Cr3+ + 3e– ⇌ Cr – 0,74 Fe2+ + 2e– ⇌ Fe – 0,44 Cr3+ + e– ⇌ Cr2+ – 0,41 Increasing strength of oxidising agents Cd2+ + 2e– ⇌ Cd Increasing strength of reducing agents – 0,40 Co2+ + 2e– ⇌ Co – 0,28 Ni2+ + 2e– ⇌ Ni – 0,27 Sn2+ + 2e– ⇌ Sn – 0,14 Pb2+ + 2e– ⇌ Pb – 0,13 Fe3+ + 3e– ⇌ Fe – 0,06 2H+ + 2e– ⇌ H2 (g) 0,00 S + 2H+ + 2e– ⇌ H2 S(g) + 0,14 Sn4+ + 2e– ⇌ Sn2+ + 0,15 Cu2+ + e– ⇌ Cu+ + 0,16 SO4 + 4H+ + 2e– ⇌ SO2 (g) + 2H2 O 2– + 0,17 Cu2+ + 2e– ⇌ Cu + 0,34 2H2 O + O2 + 4e– ⇌ 4OH– + 0,40 SO2 + 4H+ + 4e– ⇌ S + 2H2 O + 0,45 Cu+ + e– ⇌ Cu + 0,52 I2 + 2e– ⇌ 2I– + 0,54 O2 (g) + 2H+ + 2e– ⇌ H2 O2 + 0,68 Fe3+ + e– ⇌ Fe2+ + 0,77 NO–3 + 2H+ + e– ⇌ NO2 (g) + H2 O + 0,80 Ag+ + e– ⇌ Ag + 0,80 Hg2+ + 2e– ⇌ Hg(ℓ) + 0,85 NO–3 + 4H+ + 3e– ⇌ NO(g) + 2H2 O + 0,96 Br2 (ℓ) + 2e– ⇌ 2Br– + 1,07 Pt2+ + 2e– ⇌ Pt + 1,20 MnO2 + 4H+ + 2e– ⇌ Mn2+ + 2H2 O + 1,23 O2 (g) + 4H+ + 4e– ⇌ 2H2 O + 1,23 Cr2 O2– + – 3+ 7 + 14H + 6e ⇌ 2Cr + 7H2 O + 1,33 Cℓ2 (g) + 2e ⇌ 2Cℓ– – + 1,36 MnO–4 + 8H+ + 5e– ⇌ Mn2+ + 4H2 O + 1,51 H2 O2 + 2H+ + 2e– ⇌ 2H2 O + 1,77 Co3+ + e– ⇌ Co2+ + 1,81 F2 (g) + 2e– ⇌ 2F– + 2,87 Copyright reserved