Technical Sciences Paper 2 (English)

November 2025 — Grade 12 / Matric — Technical Sciences

Past Paper 2025 Grade 12 English

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🎯 1 marks ❓ 12 questions 📄 17 pages 📝 53 items found 📚 2 topics

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2.1and

Q2— Section header —

Q1— Section header —

1.1Which ONE of the following reaction types can be used to prepare propane from propene? Oxidation Hydrolysis Halogenation Hydrogenation (2\

1.2hich ONE of the following lists of compounds are arranged in order of creasing boiling point entanoic acid; butan ol; propane

1.3saturated hydrocarbon (CH CHCH CHCHCH C(CH CHCH CH(CH \H

1.4The elements the periodic table that can be used for doping are TRIVALENT MATERIAL PENTAVALENT MATERIAL

1.5Consider the following statements (i\ The anode of a galvanic cell is positive (ii\ Electroplating of metals takes place in an electrolytic cell (iii\ Oxidation takes place at the negative electrode of a

Q2— Section header —

2.1Write down the letter that represents the following:

2.1.1saturated hydrocarbon (1\

2.1.2A compound which is an isomer of but ene (1\

2.1.3An alkyne (1\

3.1Define the term vapour pressure (2\

3.2Use the information in the graph above to answer the following questions

3.2.1How does an increase in temperature affect the vapour pressure? Write down only INCREASES, DECREASES or NO EFFECT. (1\

3.2.2

Q3— Section header —

3.2.4Which compound has the longest chain length? Explain the answer by referring to the VAPOUR PRESSURE and RELATIVE STRENGTH OF THE INTERMOLECULAR FORCES of the compound (3\ [9] Vapour pressure (kPa\ C B 0 20 40 609

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4.1For reaction , write down:

4.1.1he NAME of the reaction

4.1TWO conditions that are required for th reaction

4.2Identify the type of reaction Compound Compound Compound Compound

4.3Write down the CHEMICAL FORMULA for the substance that reacts with compound to form compound

4.4Write down the NAME of reaction

4.5Consider the organic compounds in the list below. Propan Propanal Propanoic acid Propanone

4.5.1the list above identify TWO compounds that are functional isomers. (2\

4.5.2Explain and use STRUCTURAL FORMULAE to support the answer

Q4— Section header —

4.6Define the term polymer (2\

4.7Draw the structural formula of the monomer used in the production of th polymer below. (2\ 10

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5.1ame part (1\

5.2What type o junction diode is this? Write only FORWARD BIASED or REVERSE BIASED or ZERO BIASED. (1\

5.3Give a reason for

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Q6— Section header —

6.1Define the term electrolyte (2\

6.2Which electrode, or the anode? (1\

6.3Write down the half reaction that occurs at electrode

6.4Write down the:

6.4.1Chemical formula of the substance that forms at electrode

6.4.2Name of the oxidising agent in this reaction 12

6.5Consider the forms of alternat ive energy sources in the table below and answer the questions that follow TYPE OF ENERGY DIAGRAM Wind energy Solar energy

6.5Name ONE advantage of alternat e energ (1\

6.5Write down the letter of the energy source that is linked the operation of a photovoltaic cell. (1\ Write down the energy conversion t hat takes place in the cell

Q6— Section header —

6.5What is biodiesel (2\ 13

Q7— Section header —

7.3.1Half reaction for half cell (2\

7.3.2Cell notation (3\ [12] TOTAL:12

Topics Identified

Business FunctionsLeadership

Mark Allocation

Sections10 + 9 + 6 + 12 = 37 marks

Paper information

SubjectTechnical Sciences

Year2025

SessionNovember

TypePast Paper

PaperPaper 2

LanguageEnglish

Pages17

Downloads8

Examination context

Decade2020s

Years ago1y

SeasonSpring (SH)

Start dayWednesday

Exam periodNovember 2025

Days since exam356

About Technical Sciences examination preparation

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