# Technical Sciences Grade 12 P2 NSC November Mock 2026 Memo

> Grade 12 Technical Sciences Paper 2 memorandum from the NSC November Mock Exam 2026 (English), 6 pages. Read online or download the free PDF.

- Page: https://www.hlayiso.com/library/grade-12-technical-sciences-2026-nsc-november-mock-exam-memorandum-paper-2/c1afb6a9-b610-48e6-9f21-b34b01b352e0
- Updated: 2026-10-29
- Subject: Technical Sciences
- Grade: Grade 12
- Language: English
- Document type: Memorandum
- Year: 2026
- Exam period: NSC November Mock Exam
- Paper: 2
- Publisher: Hlayiso
- Curriculum: CAPS
- Pages: 6

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## About this document

Technical Sciences · Grade 12 · NSC November Mock Exam · 2026 · English. Memorandum, 6 pages. Read online or download the PDF.

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## Document text

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### Page 1

hlayiso mock exams
                             Practice Series:
                             Grade 12 NSC Preparation
                             WWW.HLAYISO.COM

                                  NATIONAL
                             SENIOR CERTIFICATE

                                    GRADE 12

                            TECHNICAL SCIENCES P2
                            MOCK EXAMINATION 2026
                              MARKING GUIDELINES

  MARKS: 75

                     These marking guidelines consist of 6 pages.

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### Page 2

Technical Sciences/P2                        2                              Hlayiso/Mock 2026
                                  NSC – Marking Guidelines

GENERAL MARKING GUIDELINES

  1. Calculations: Marks are awarded for the correct formula, correct substitution and the
     correct final answer WITH the correct unit, as indicated by the ticks (✓).
  2. Half-reactions: Award full marks for the correct half-reaction with the correct arrow. If
     ⇌ is used instead of →, award a maximum of 1 mark. If the reaction is reversed (wrong
     direction), award 0 marks.
  3. Balanced equations: 1 mark for reactants, 1 mark for products and 1 mark for
     balancing. Ignore phases.
  4. IUPAC names: Hyphens and commas must be in the correct places. If a name is
     otherwise correct but a hyphen is omitted, award a maximum of 1 out of 2 marks.
  5. Structural formulae: ALL hydrogen atoms and bonds must be shown. A condensed or
     semi-structural formula earns no marks where a structural formula is asked for.
  6. Definitions: Accept equivalent wording that conveys the same meaning.
  7. Negative marking: If a candidate must explain a choice and the choice is incorrect, no
     marks are awarded for the explanation.

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### Page 3

Technical Sciences/P2                          3                            Hlayiso/Mock 2026
                                    NSC – Marking Guidelines

QUESTION 1
1.1     B ✓✓                                                                               (2)
1.2     D ✓✓                                                                               (2)
1.3     A ✓✓                                                                               (2)
1.4     C ✓✓                                                                               (2)
1.5     B ✓✓                                                                              (2)
                                                                                         [10]

QUESTION 2
2.1     A series of organic compounds that can be described by the same general
        formula ✓✓
        OR A series of organic compounds in which one member differs from the next
        by a CH2 group.                                                                    (2)
2.2.1   E✓                                                                                 (1)
2.2.2   D✓                                                                                 (1)
2.2.3   B✓                                                                                 (1)
2.3     3-methylpentane
        Marking: methyl substituent on C3 ✓; correct stem pentane ✓                        (2)
2.4     but-2-ene
        Marking: but- (four-carbon chain) ✓; -2-ene (double bond at C2) ✓                  (2)
2.5.1   C 4 H8 ✓                                                                           (1)
2.5.2   Cn H2n ✓                                                                           (1)
             H     O        H   H   H
2.6.1   H    C     C    O   C   C   C   H
             H              H   H   H
        Marking: functional group –COO– correctly drawn ✓; whole structure correct (2
        carbons on acid side, 3 carbons on alcohol side) ✓                                 (2)
2.6.2   Propan-1-ol ✓                                                                     (1)
                                                                                         [14]

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### Page 4

Technical Sciences/P2                         4                               Hlayiso/Mock 2026
                                   NSC – Marking Guidelines

QUESTION 3
3.1     The temperature at which the vapour pressure of a liquid is equal to the external
        (atmospheric) pressure. ✓✓                                                           (2)
3.2     The compounds have the same / similar molar masses (molecular sizes). ✓              (1)
3.3     Type of compound / homologous series / functional group ✓                            (1)
3.4     Compound A (butane) has only (weak) London forces between its molecules.
        ✓
        Compound B (propan-1-ol) has (stronger) hydrogen bonds between its
        molecules (in addition to London forces). ✓
        More energy is needed to overcome the intermolecular forces in compound B
        than in compound A. ✓                                                                (3)
3.5     A / butane ✓                                                                         (1)
3.6     Compound A has the weakest intermolecular forces / lowest boiling point ✓, so
        its molecules escape into the vapour phase most easily (least energy needed
        to evaporate). ✓                                                                     (2)
3.7     Compound C (a carboxylic acid) has TWO sites for hydrogen bonding (C=O
        and O–H) / forms dimers, so it has more / stronger hydrogen bonds than
        compound B. ✓
        More energy is needed to overcome the intermolecular forces in compound C.
        ✓                                                                                    (2)
                                                                                            [12]

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### Page 5

Technical Sciences/P2                           5                             Hlayiso/Mock 2026
                                     NSC – Marking Guidelines

QUESTION 4
4.1.1   Hydration / addition ✓                                                               (1)
4.1.2   Hydrogenation / addition ✓                                                           (1)
4.2.1   2-bromopropane
        Marking: 2-bromo ✓; propane ✓                                                        (2)
            H   Br      H
4.2.2   H   C    C      C   H
            H    H      H
        Marking: Br on the second carbon ✓; whole structure correct ✓.   1-bromopropane:
        max 1/2                                                                              (2)
4.3     Platinum / Pt       OR   Nickel / Ni    OR    Palladium / Pd ✓                       (1)
4.4     C3 H8 + 5O2 → 3CO2 + 4H2 O
        Marking: reactants ✓     products ✓    balancing ✓                                   (3)
4.5.1   A large molecule composed of smaller monomer units ✓ that are covalently
        bonded to each other in a repeating pattern. ✓                                       (2)
4.5.2   Addition polymerisation ✓                                                            (1)
4.5.3   Any ONE: Plastic crates / food containers / bottle tops / ropes / carpets / pipes
        / car bumpers ✓                                                                      (1)
                                                                                            [14]

QUESTION 5
5.1     A cell in which electrical energy is converted into chemical energy. ✓✓
        OR A cell in which a non-spontaneous reaction takes place when an electric
        current is passed through it.                                                        (2)
5.2     P / the steel key ✓                                                                  (1)
5.3     Ni2+ + 2e– → Ni ✓✓                                                                   (2)
5.4     Ni → Ni2+ + 2e– ✓✓                                                                   (2)
5.5     REMAINS THE SAME ✓                                                                   (1)
5.6     The nickel anode (Q) is oxidised and Ni2+ ions go into solution ✓ at the same
        rate as Ni2+ ions are reduced and deposited on the key (P). ✓                        (2)
5.7     Any TWO:
        To prevent / reduce corrosion (rusting) of the steel ✓
        To make the surface harder / more resistant to wear and scratches (more
        durable) ✓
        To increase the value of the key                                                     (2)
                                                                                            [12]

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### Page 6

Technical Sciences/P2                           6                                   Hlayiso/Mock 2026
                                     NSC – Marking Guidelines

QUESTION 6
6.1     A cell in which chemical energy is converted into electrical energy. ✓✓
        OR A cell in which a spontaneous redox reaction produces an electric current.              (2)
6.2     Any ONE: Completes the circuit / allows ions to move between the half-cells /
        maintains electrical neutrality in the half-cells ✓                                        (1)
6.3     Aℓ / aluminium ✓                                                                           (1)
6.4     Aℓ → Aℓ3+ + 3e– ✓✓                                                                         (2)
6.5     Aℓ | Aℓ3+ (1 mol·dm–3 ) || Cu2+ (1 mol·dm–3 ) | Cu
        Marking: anode half-cell Aℓ | Aℓ3+ ✓   salt bridge || ✓   cathode half-cell Cu2+ | Cu ✓
        Ignore concentrations. Accept Aℓ | Aℓ3+ || Cu2+ | Cu.                                      (3)
6.6     Eθcell = Eθcathode – Eθanode ✓
        Eθcell = 0,34 ✓ –(–1,66) ✓
        Eθcell = 2,00 V ✓
        Notes: Accept any other correct formula from the data sheet. Unconventional
        abbreviations, e.g. Ecat , accepted.                                                       (4)
                                                                                                  [13]
                                                                                        TOTAL:     75

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