Process Chemistry NCV Level 4 — Document

November 2022 — NCV Level 4 — Process Chemistry

NCV Level 4 2022 NCV Engineering

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🎯 10 marks ⏱️ 3h 📄 6 pages 📝 50 items found 📚 1 topics

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Questions — A Preview of What to Expect in the Document

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Q1— Section header —

1.1Thermoplastic resins cannot be recycled.

1.2Ultra high molecular weight polyethylene (UH WPE\is used to manufacture bullet proof vests.

1.3Amplats is a world leader in the production of platinum.

1.4The chemical formula of h exane is

1.55

Q2— Section header —

2.5\n the ANSWER BOOK. COLUMN A COLUMN B

2.5Gold Butane, toluene, and xylene Butane and propane Production of contraceptives Cross

Q3— Section header —

3.1List TWO industrial applications of the following polymers:

3.1.1Polyvinyl chloride (PVC\

3.1.2Styrene butadi rubber (SBR\

3.1.3

3.2Which monomers are used to prepare the following polymers?

3.2.1Polypropylene

3.2.2

3.3Give a brief description of the Ziegler Natta catalyst. (5\ [15]15

Q4— Section header —

4.1Draw a labelled process flow diagram to show the production of VCM. (11\

4.2List TWO polymer manufacture s in South Africa. (2\

4.3What is the main function of external lubricants in polymers? (2\ [15]15

Q5— Section header —

5.1List TWO properties of the following metals:

5.1.1Copper

5.1.2

5.2Give a brief description of the following processes

5.2.1Flotation

5.2.2Comminution

5.2.3

5.3Complete the following diagram by giving the missing words . Only write the word next to the letter (A J\n the ANSWER BOOK. SO

5.4List THREE other types of ferrochrome alloys. (3\ [23] Atmospheric leaching Lead removal23

Q6— Section header —

6.1Sasol is the main producer of coal to liquid fuel in the world.

6.1.1Name the FOUR main steps of coal gasification (4\

6.1.2Complete and balance the following equation: C(s\ O (g\ H (4\

6.1.3The ectisol nit is composed of THREE steps. List and explain th ese steps

6.1.4Name THREE types of fertili ers produced from ammonia. (3\

6.2Give a brief description of the following and provide ONE application of each

6.2.1Diesel

6.2.2Marine heavy fuel oil (Marine gas oil\

6.2.323

Q7— Section header —

7.1List TWO products that are produced by Kombat. (2\

7.2.1What does the abbreviation ARV stand for?

7.2.2

7.3.1Define the term antibiotic (2\

7.3.2Give a brief description of penicillin fermentation. Also indicate the fermentation conditions , and as to what happens to the final product (8\ [14] TOTAL: 10014

7.2Adcock Ingram manufactures a large range of generic medicines such as ARVs

7.3

Topics Identified

Chemical Bonding

Mark Allocation

Total100 marks

Sections5 + 5 + 15 + 15 + 23 + 23 + 14 = 100 marks

Paper information

TitleDocument

SubjectProcess Chemistry

LevelNCV Level 4

Document typeQuestion paper

Year2022

MonthNovember

Pages6

Downloads4

Examination context

Decade2020s

Years ago4y

SeasonSpring (SH)

Start dayTuesday

Exam periodNovember 2022

Days since exam1,440

About Process Chemistry examination preparation

This TVET examination resource can be used as part of a structured revision programme. Past papers are most useful when learners attempt questions independently, work within a realistic time limit, and review their answers afterwards.

How to use this resource for revision

A TVET past examination paper is most useful when it is treated as an active revision exercise. Try the questions yourself before checking the corresponding memorandum. Where you make an error, identify the reason — was it a knowledge gap, a calculation mistake, an interpretation issue, or an examination technique problem?

For stronger examination practice, complete the paper without unnecessary interruptions and keep track of the questions that take the most time. Afterwards, review the memorandum and separate knowledge gaps from mistakes caused by interpretation, calculation, structure, or examination technique.

understanding question requirements

applying subject knowledge

working under time constraints

checking answers

identifying revision priorities

A practical revision approach

Start by completing the resource without looking at the memorandum. Review incorrect and incomplete answers afterwards and make a short revision list based on the areas that caused difficulty.

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File size225.3 KB

Pages6

Archived on8 September 2026

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