Physical Sciences Paper 2 (English)

Feb-March 2016 — Grade 12 / Matric — Physical Sciences

Past Paper 2016 Grade 12 English Physical Sciences Hub →

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🎯 150 marks ❓ 12 questions ⏱️ 3h 📄 20 pages 📝 64 items found ∑ 1 math symbols 📚 5 topics

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Q5— Section header —

Q2— Section header —

Q1— Section header —

1.10\ in the ANSWER BOOK, for example

1.11E. Which ONE of the following compounds is an aldehyde OCH (2\ The equation below represents the decomposition of calcium carbonate. CaCO (s\ CaO(s\ CO (g\

1.3Consider the cell notation of the galvanic cell below Which ONE of the following statements regarding this cell is TRUE? Copper is formed at the cathode Copper is formed at the anode inc is formed at the anode

Q2— Section header —

2.1Consider the organic compounds represented by t he letters to below Write down the:

2.1.1Name of the homologous series to which compound belongs (1\

2.1IUPAC name of compound (3\

2.1Structural formula of a tertiary alcohol that is structural isomer of compound (2\

2.2An alcohol and methanoic acid are heated n the presence of concentrated sulphuric acid to form an ester

2.2.1What is the role of the concentrated sulphuric acid in this reaction? (1\

2.2.2Write down the NAME or FORMULA of the inorganic product formed. (1\ The ester contains 6,67% hydrogen (H\

2.2.3Empirical formula (5\

2.2.4Molecular formula (3\ Write down the:

2.2.5Structural formula of methano ic acid

2.2.6IUPAC name of the ester

Q3— Section header —

3.1Define the term boiling point. (2\

3.2What is the relationship between strength of intermolecular forces and boiling point? (1\ The rela tionship between strength of intermolecular forces and boiling point

3.3Refer to the TYPE and the STRENGTH of intermolecular forces to explain the difference in boiling points between:

3.3.1Compound (3\

3.3.2Compound and Is co mpound a GAS or LIQUID at room temperature

Q4— Section header —

4.1During eaction 1 = CH undergo polymerisation to form compound For this reaction, write down the

4.1.1ype of polymeri ation (1\

4.1NAME of compound (1\ For eaction 2 rite down the: .2. UPAC name compound

4.2Type of addition reaction of which this is an example (1\ uring eaction ompound

4.3STRUCTURAL FORMULA of compound

4.3NAME or FORMULA the INORGANIC product (1\ Reaction is an addition reaction

4.4Is C a SATURATED or an UNSATURATED compound? Give a reason for the answer.

4.4Write down the NAME or FORMULA of the INORGANIC reactant needed for this reaction. (1\

4.4ing molecular formulae write down a balanced equation for the complete combustion of C (3\ 4] CH2 = CH React ion 1 + HC

Q5— Section header —

5.3.2must be drawn on the GRAPH SHEET attached at the end of the QUESTION PAPER. Methanol and hydrochloric acid react according to the following balanced equation:

5.1State TWO factors that can INCREASE the rate of this reaction. (2\

5.2Define the term reaction rate (2\ he rate of the reaction between methanol and hydrochloric acid is investigated. T intervals. The following

3.1Calculate the average reaction rate during the first 15 minutes. (3\

3.2Use the data in the table to d raw a graph of concentration versus time on the attached GRAPH SHEET TE: The graph is not a straight line. ATTACH THIS GRAPH SHEET TO YOUR ANSWER BOOK

3.3From the graph, determine the concentration of (aq\ at the minute. (1\

3.4Use the collision theory to explain why the reaction rate decreases with time. Assume that the temperature remains constant. (3\

3.5Calculate the mass of CH at the minute The volume of the reagents remains 60 during the reaction. (5\ 11

6.1Calculate the initial concentration of CO (g\ (4\

6.2Give a reason why equilibrium will not be established. (1\ CaCO (s\ is now added to the 2,2 (g\n the container and after a while equilibrium is established

6.3Give a reason why this reaction will only reach equilibrium in a SEALED container. (1\

6.4Calculate the minimum mass of CaCO (s\ that must be added to the conta iner to achieve equilibrium.

6.5How will EACH of the following changes affect the amount of CO (g\ rite down only INCREASES, DECREASES or REMAINS THE SAME.

5.1

6.6

7.1efine an acid in terms of the Lowry nsted theory Carbonated water is an aqueous solution of carbonic acid, H (aq\ ionises in two steps

Q7— Section header —

8.1At which half cell, or , are electrons released into the external circuit (1\ Write down the

8.2.1Reduction half reaction that takes place in this cell (2\

8.2.2NAME or FORMULA of the substance wh ose oxidation numb er DECREASES (1\ Calculate the initial cell potential of this cell

9.1Write down the type of electrochemical cell illustrated above. (1\ The graph below show the change in mass of the electro des whil

9.2Define a reducing agent in terms of electron transfer. (2\ Which graph represent the change in mass electrode

9.4rite down the half reaction that ta kes place at electrode (2\

9.5Electrodes are now repl aced by graphite electrodes. It is observed that chlorine gas

10.1Write down the name of the industria l preparation of nitric acid (1\

10.2The catalytic oxidation of ammonia is one of the steps in the process named

Q10— Section header —

10.3Write down a balanced equation fo r the preparation of ammonium nitrate Calculate the mass , in kilo gram, of ammonium nitrate that can be made from 8 x 10

Q5— Section header —

Mathematical Content

f(x)

Topics Identified

MechanicsElectricityOrganic ChemistryElectrochemistryThermodynamics

Mark Allocation

Total150 marks

Sections20 = 20 marks

Paper information

SubjectPhysical Sciences

Year2016

SessionFeb-March

TypePast Paper

PaperPaper 2

LanguageEnglish

Pages20

Downloads7

Examination context

Decade2010s

Years ago10y

Season—

Start day—

Exam period—

Days since exam—

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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