Physical Sciences Paper 2 (English)

November 2015 — Grade 12 / Matric — Physical Sciences

Past Paper 2015 Grade 12 English Physical Sciences Hub →

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🎯 150 marks ❓ 12 questions ⏱️ 3h 📄 19 pages 📝 55 items found ∑ 1 math symbols 📚 6 topics

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Q2— Section header —

Q1— Section header —

1.11E. Which ONE of the following pairs of reactants is used in a reaction during the contact process? (g\ and H (g\ (g\ and O (g\ (g\ and O

Q2— Section header —

2.1IUPAC name of compound (3\

2.1.5IUPAC name of compound Compound is a gas used in cigarette lighters. To which homologous series does compound belong (1\

Q2— Section header —

3.1The flow diagram below shows two organic reactions. The letter represent organic compound Use the information in the flow diagram to answer the questions that follow Write down the

3.1.1Type of reaction of which eaction 1 is an example (1\ STRUCTURAL FORMULA of the functional group of ethyl propanoat (1\ IUPAC name

3.1Type of reaction of which eaction 2 is an example (1\

3.1NAME or FORMULA of the acid catalyst (1\

3.1STRUCTURAL FORMULA of the alkene (2\ The condensed formula of a polymer is shown below. Write down the

4.1Define the term functional group of an organic compound. (2\ Which ONE of the compounds or in the table the:

4.2.1Highest boiling point Refer to the vapour pressures in the table to give a reason for the answer.

4.2.2Weakest intermolecular forces (1\

4.3Refer to the type of in termolecular forces to explain the difference between the vapour pressure of compound compound

5.1Name TWO essential apparatus needed to determine the rate of hydrogen production. (2\ he graph

5.2At which time ( or \ is the:

5.2.1Reaction rate the highest (1\

5.2.2Mass of zinc present in the flask the s malles (1\

5.3In which time interval, between t and t OR between t and t , does the largest volume of hydrogen gas form per second? (1\

5.4Redraw the graph for Experiment in the ANSWER BOOK On the same set of axes, sketch the graphs that will be

5.5The initial mass of zinc used in each experiment is 0,8 g. The balanced equation for the reaction in xperiment is: Zn(s\ 2 (aq\ H (g\

5.5.1Calculate the mass of zinc present in the flask after completion of the reaction in xperiment (5\

5.5.2How will the mass of zinc present in the flask after completion of the reaction in xperiment 2 compare the answer QUESTION rite down only LARGER THAN, SMALLER

6.1How will the rate of formation of (g\ compare to the rate of formation of (g\ at equilibrium? rite down only HIGHER THAN, LOWER THAN or EQUAL TO. The reaction mixture is analysed at regular time intervals. The results obtained

6.2

6.3More is now added to the container.

6.3.2How will this change affect the amount of X (g\? Write down INCREASES, DECREASES or REMAINS THE SAME. Use Le Chatelier's principle to explain the answer to QUESTION

6.3.1(1\ (2\ 11

6.4

6.5Is the forward reaction EXOTHERMIC or ENDOTHERMIC? Fully explain how you arrive d at the answer. The Maxwell Boltzmann distribution curve below represents the number of particles against kinetic energy

6.6

7.1Ammonium chloride crystals , NH dissolve in water to form ammonium and chloride ions. The amm onium ions react with water according to the

7.1.1Write down the name of the process described by the underlined sentence (1\

7.1.2Is ammonium chloride ACIDIC or BASIC in aqueous solution ? Give a reason for the answer. (2\

7.2A certain fertiliser consists of 92% ammonium chloride. A sample of mass x of this fertiliser is dissolved in 100 cm sodium hydroxide solution NaOH (aq\ The

8.1Write down THREE conditions needed for these cells to function standard cells (3\

8.2For ombination , identify

8.2.1he anode of the cell (1\

8.2.2by using a calculation (5\

8.3For ombination , write down the

8.3.1Oxidation half reaction (2\

8.3.2NAME or FORMULA of the metal used in the cathode compartment (1\ Arrange the llowing species in order of INCREASING

9.1Define the term electrolysis (2\ Give a reason why direct current (DC\

Q10— Section header —

10.1For the industrial preparation o f ammonia rite down:

10.1.1The name of the process used (1\

10.1.2A balanced equation for the reaction that occurs (3\

10.1.3The source of nitrogen (1\

10.2The yield of ammonia changes with temperature and pressure during its industri al preparation . The graph below show how the percentage

10.2.1

10.2.2State TWO advantages of using high pressure in the preparation of ammonia. (2\

10.2.3The advantage of using a low temperature is the large percentage of ammonia for med. What is the disadvantage of using a low temperature? (1\

10.3Ammonia is also used in the preparation of other fertilisers such as ammonium nitrate. Calcula te the mass of nitrogen in a 50 kg bag of pure ammonium nitrate fertiliser. (3\ [12]12

Mathematical Content

f(x)

Topics Identified

MechanicsElectricityChemical BondingOrganic ChemistryElectrochemistryThermodynamics

Mark Allocation

Total300 marks

Sections20 + 15 + 16 + 12 = 63 marks

Paper information

SubjectPhysical Sciences

Year2015

SessionNovember

TypePast Paper

PaperPaper 2

LanguageEnglish

Pages19

Downloads9

Examination context

Decade2010s

Years ago11y

SeasonSpring (SH)

Start dayThursday

Exam periodNovember 2015

Days since exam4,009

About Physical Sciences examination preparation

Grade 12 Physical Sciences combines Physics and Chemistry. Paper 1 covers mechanics, electricity, waves, and optics, while Paper 2 focuses on chemical bonding, organic chemistry, and electrochemistry.

Every available Grade 12 Physical Sciences past paper and memorandum is collected in the Physical Sciences hub at physical-science.freemode.co.za — browse all years, sessions and languages in one place.

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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.

applying scientific principles

selecting appropriate equations

interpreting scientific information

performing calculations with correct units

explaining scientific reasoning

A practical revision approach

Create a one-page formula sheet and practice deriving units from first principles. The memorandum rewards correct formula identification, proper substitution, and accurate unit handling.

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