Technical Sciences Paper 2 (English)

November 2022 — Grade 12 / Matric — Technical Sciences

Past Paper 2022 Grade 12 English

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🎯 75 marks ❓ 12 questions 📄 9 pages 📝 48 items found 📚 1 topics

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2.1and

Q2— Section header —

Q1— Section header —

1.1Which ONE of the compounds below represents a saturated hydrocarbon?

1.4Electroplating is a common application of electrolysis. Which ONE of the following is NOT used for electroplating metals?

1.5The net cell reaction taking place in a fuel cell is 2H (g\ + O (g\ 2H

Q2— Section header —

2.1Define the term homologous series (2\ 2. Write down the letter (A F\

2.2.1Hal alkane (1

2.2.2unctional isomers (2\

2.2.3Ketone (1

2.2.4Unsaturated hydrocarbon (1 2. Write down the IUPAC name of compound (2\

2.4Draw the structur al formula of the following

2.4.1 Compound (2

2.4.2 Functional group of compound (2 [13]13

3.1Define the term boiling point (2\

3.2Which ONE of the compounds above contains the weakest type of intermolecular force? (1\ In no specific order, t he above compounds are identified as propan

3.3Write down the NAME of the compound above represented by the following letter

3.3.1(1\

3.3.2(1\

3.3.3(1\

3.4Explai n the difference in the vapour pressure of propanoic acid and propan ol. Refer to the TYPE OF INTERMOLECULAR FORCES, STRENGTH OF THE INTERMOLECULAR FORCES

3.5Which compound has the highest meltin g point? Write down only or

4.1.1Reaction (1\

4.1.2Reaction (1\

4.2Using molecular formulae, write down a balanced chemical equation for reaction 1. (3\

4.3Excess oxygen is the other reactant in reaction 2.

4.3.1Identif y the type of reaction. (1\

4.3.2Write down the NAME or FORMULA of compound (2\

4.4hloroethane reacts with water to form compound rite down the following f or this reaction

4.4.1The type of reaction (1\

4.4.2TWO reaction conditions (2\

4.4.3The NAME of compound (2\ Ethene Chloroethane Compound Compound

4.5Materials consisting of certain elements in group IV have electrical conduct ivity between conductors and insulat ors.

4.5.1Write down the NAME of the material refe ed to in the above statement. (1\

4.5.2Define the term oping. (2\

4.5.3A diode is constructed by connecting the positiv e terminal of the battery to a type material and the negative terminal to a

5.2Define the term electrolysis. (2\

5.3Is the reaction ENDOTHERMIC or EXOTHERMIC? (1\

5.4Which electrode is the cathode? Write down only or (1\

5.5Write down the observation made at the following electrode

5.7is used in its molten form inste ad of its solid state (2\ [12]12

6.2State TWO standard conditions for the cell. (2\

6.3Write down the NAME or FORMULA of the oxidising agent. (2\

6.4Identify the polarity of the:

6.4.1node (1\

6.4.2athode (1\

6.5The initial reading on a voltmeter connected across the electrodes is 1,10 V. Use a calculation to identify metal (5\ [12] TOTAL12

Topics Identified

Leadership

Mark Allocation

Total75 marks

Sections10 + 13 + 11 + 17 + 12 + 12 = 75 marks

Paper information

SubjectTechnical Sciences

Year2022

SessionNovember

TypePast Paper

PaperPaper 2

LanguageEnglish

Pages13

Downloads4

Examination context

Decade2020s

Years ago4y

SeasonSpring (SH)

Start daySaturday

Exam periodNovember 2022

Days since exam1,449

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