Physical Sciences Grade 10 P2 November Mock 2026 QP (Eng)

Mock hlayiso mock exams Practice Series: Grade 10 Exam Preparation WWW.HLAYISO.COM NATIONAL SENIOR CERTIFICATE GRADE 10 PHYSICAL SCIENCES: CHEMISTRY (P2) NOVEMBER EXAMINATION 2026 (MOCK) MARKS: 100 TIME: 2 hours This question paper consists of 9 pages and 2 data sheets. Copyright reserved Please turn over

Physical Sciences/P2 2 Hlayiso/Mock 2026 NSC Mock INSTRUCTIONS AND INFORMATION 1. Write your name and class (e.g. 10A) in the appropriate spaces on the ANSWER BOOK. 2. This question paper consists of EIGHT questions. Answer ALL the questions in the ANSWER BOOK. 3. Start EACH question on a NEW page in the ANSWER BOOK. 4. Number the answers correctly according to the numbering system used in this question paper. 5. Leave ONE line between two subquestions, e.g. between QUESTION 2.1 and QUESTION 2.2. 6. You may use a non-programmable calculator. 7. You may use appropriate mathematical instruments. 8. Show ALL formulae and substitutions in ALL calculations. 9. Round off your FINAL numerical answers to a minimum of TWO decimal places. 10. Give brief motivations, discussions, etc. where required. 11. You are advised to use the attached DATA SHEETS. 12. Write neatly and legibly. Copyright reserved Please turn over

Physical Sciences/P2 3 Hlayiso/Mock 2026 NSC Mock QUESTION 1: MULTIPLE-CHOICE QUESTIONS Various options are provided as possible answers to the following questions. Each question has only ONE correct answer. Choose the answer and write only the letter (A–D) next to the question numbers (1.1 to 1.8) in the ANSWER BOOK, e.g. 1.9 E. 1.1 Which ONE of the following is a PURE SUBSTANCE? A Air B Sea water C Distilled water D Brass (2) 1.2 An element has the electron configuration 1s2 2s2 2p6 3s2 3p5 . In which group of the periodic table is this element found? A 3 B 7 C 15 D 17 (2) 1.3 Which ONE of the following elements has the HIGHEST first ionisation energy? A Argon B Sodium C Magnesium D Chlorine (2) 1.4 Which ONE of the following gives the CORRECT numbers of protons, neutrons and electrons in the ion 24 2+ 12 Mg ? PROTONS NEUTRONS ELECTRONS A 12 12 12 B 12 12 10 (2) C 12 10 12 D 24 12 10 Copyright reserved Please turn over

Physical Sciences/P2 4 Hlayiso/Mock 2026 NSC Mock 1.5 Which ONE of the following is a CHEMICAL change? A Melting of ice B Dissolving of table salt in water C Rusting of an iron gate D Boiling of water (2) 1.6 Which ONE of the following substances forms a NON-ELECTROLYTE when it dissolves in water? A Sodium chloride B Sugar (sucrose) C Hydrogen chloride D Potassium nitrate (2) 1.7 The number of moles in 11 g of carbon dioxide (CO2 ) is … A 0,25 B 0,5 C 2 D 4 (2) 1.8 The volume occupied by 0,5 mol of oxygen gas at STP is … A 22,4 dm3 B 44,8 dm3 C 11,2 dm3 D 5,6 dm3 (2) [16] Copyright reserved Please turn over

Physical Sciences/P2 5 Hlayiso/Mock 2026 NSC Mock QUESTION 2 (Start on a new page.) The table below contains a list of substances. A Brass B Silicon C Sodium chloride D Copper E Oxygen F Sand and water G Sulphur H Carbon dioxide 2.1 Define the term compound. (2) 2.2 Write down the LETTER of the substance that is: 2.2.1 A metalloid (1) 2.2.2 A heterogeneous mixture (1) 2.2.3 An alloy (1) 2.2.4 A non-metal element that is a SOLID at room temperature (1) 2.2.5 A compound in which the particles are held together by IONIC bonds (1) 2.3 Write down the: 2.3.1 Chemical formula of calcium nitrate (2) 2.3.2 Name of the compound Na2 SO4 (1) [10] Copyright reserved Please turn over

Physical Sciences/P2 6 Hlayiso/Mock 2026 NSC Mock QUESTION 3 (Start on a new page.) Learners heat a sample of solid naphthalene at a constant rate and record its temperature every minute. The heating curve below was drawn from their results. S T 218 Temperature (◦ C) Q R 80 20 P Time (min) 3.1 Define the term melting point. (2) 3.2 Write down the melting point of naphthalene. (1) 3.3 Write down the PHASE of naphthalene at 150 ◦ C. (1) 3.4 Use the kinetic molecular theory to explain why the temperature remains constant in section QR, although the naphthalene is still being heated. (3) 3.5 The boiling point of water at standard pressure is 100 ◦ C. Are the forces between naphthalene molecules STRONGER THAN or WEAKER THAN the forces between water molecules? Explain the answer. (3) [10] Copyright reserved Please turn over

Physical Sciences/P2 7 Hlayiso/Mock 2026 NSC Mock QUESTION 4 (Start on a new page.) 4.1 Naturally occurring boron consists of two isotopes, boron-10 and boron-11. The percentage abundance of boron-10 is 19,9%. 4.1.1 Define the term isotopes. (2) 4.1.2 Write down the number of NEUTRONS in an atom of boron-11. (1) 4.1.3 Calculate the relative atomic mass of boron. (3) 4.2 In 1911 a scientist fired alpha particles at a very thin sheet of gold foil. Most of the alpha particles passed straight through the foil, but a few were deflected through large angles. Name the scientist who proposed the NUCLEAR model of the atom based on these results. (1) 4.3 Sulphur (S) is a yellow non-metal in period 3 of the periodic table. 4.3.1 Write down the electron configuration of a sulphur atom using sp-notation. (2) 4.3.2 Sulphur forms the sulphide ion, S2– . Write down the electron configuration of the sulphide ion using sp-notation. (2) [11] QUESTION 5 (Start on a new page.) The table below shows the first ionisation energies of three elements in GROUP 1 of the periodic table. ELEMENT FIRST IONISATION ENERGY (kJ·mol–1 ) Lithium (Li) 520 Sodium (Na) 496 Potassium (K) 419 5.1 Define the term first ionisation energy. (2) 5.2 Describe the trend in first ionisation energy from lithium to potassium. (1) 5.3 Explain the trend described in QUESTION 5.2. (3) 5.4 Write down the NAME of the group of elements to which lithium, sodium and potassium belong. (1) 5.5 Which element, sodium OR chlorine, has the HIGHER electronegativity? (1) [8] Copyright reserved Please turn over

Physical Sciences/P2 8 Hlayiso/Mock 2026 NSC Mock QUESTION 6 (Start on a new page.) 6.1 Define the term covalent bond. (2) 6.2 Draw Lewis diagrams to show: 6.2.1 A water (H2 O) molecule (2) 6.2.2 The formation of magnesium chloride (MgCℓ2 ) from magnesium and chlorine atoms (3) 6.3 Copper is used to make electrical wires. 6.3.1 Describe the term metallic bonding. (2) 6.3.2 Explain why copper is a good conductor of electricity. (2) 6.4 Write down the chemical formula of the ionic compound that forms when aluminium reacts with oxygen. (1) [12] QUESTION 7 (Start on a new page.) 7.1 Classify each of the following as a PHYSICAL or a CHEMICAL change: 7.1.1 Sugar dissolves in a cup of tea. (1) 7.1.2 Magnesium ribbon burns in air to form a white powder. Give a reason for the answer. (2) 7.2 Sodium sulphate (Na2 SO4 ) dissolves in water. The solution conducts electricity. 7.2.1 Define the term electrolyte. (2) 7.2.2 Write down a balanced equation, including phases, for the dissociation of sodium sulphate in water. (3) A few drops of barium chloride (BaCℓ2 ) solution are added to the sodium sulphate solution. A WHITE PRECIPITATE forms that does NOT dissolve when dilute nitric acid is added. 7.2.3 Write down the NAME of the white precipitate. (1) 7.2.4 Write down a balanced NET IONIC equation for the formation of the precipitate. (2) 7.2.5 Name the type of reaction that takes place when the precipitate forms. (1) 7.3 Balance the following equation for the reaction of aluminium with oxygen: Aℓ(s) + O2 (g) → Aℓ2 O3 (s) (2) [14] Copyright reserved Please turn over

Physical Sciences/P2 9 Hlayiso/Mock 2026 NSC Mock QUESTION 8 (Start on a new page.) 8.1 A learner adds 10 g of calcium carbonate (CaCO3 ) to EXCESS dilute hydrochloric acid. The balanced equation for the reaction is: CaCO3 (s) + 2HCℓ(aq) → CaCℓ2 (aq) + H2 O(ℓ) + CO2 (g) 8.1.1 Define the term one mole of a substance. (2) 8.1.2 Calculate the molar mass of CaCO3 . (1) 8.1.3 Calculate the number of moles of CaCO3 that react. (3) 8.1.4 Calculate the volume of CO2 gas produced at STP. (3) 8.1.5 Calculate the number of OXYGEN ATOMS present in the 10 g of CaCO3 . (3) 8.1.6 All the calcium chloride that forms is in 250 cm3 of solution. Calculate the concentration of the calcium chloride solution. (3) 8.2 A 5,0 g sample of hydrated copper(II) sulphate, CuSO4 ·xH2 O, is heated until all the water of crystallisation is driven off. The mass of the anhydrous copper(II) sulphate that remains is 3,2 g. Determine the value of x. (4) [19] TOTAL: 100 Copyright reserved Please turn over

Physical Sciences/P2 1 Hlayiso/Mock 2026 NSC Mock DATA FOR PHYSICAL SCIENCES GRADE 10 PAPER 2 (CHEMISTRY) TABLE 1: PHYSICAL CONSTANTS NAME SYMBOL VALUE Avogadro’s constant NA 6,02× 1023 mol–1 Molar gas volume at STP Vm 22,4 dm3 ·mol–1 Standard pressure pθ 1,013× 105 Pa Standard temperature Tθ 273 K Charge on electron e –1,6× 10–19 C TABLE 2: FORMULAE m N n= n= M NA n m V c= or c = n= V MV Vm Copyright reserved Please turn over

Physical Sciences/P2 2 Hlayiso/Mock 2026 NSC Mock TABLE 3: THE PERIODIC TABLE OF ELEMENTS 1 2 13 14 15 16 17 18 (I) (II) 3 4 5 6 7 8 9 10 11 12 (III) (IV) (V) (VI) (VII) (VIII) 1 2 Atomic number 2,1 H He 1 KEY 4 29 3 4 5 6 7 8 9 10 1,0 1,5 Electronegativity 1,9 Cu Symbol 2,0 2,5 3,0 3,5 4,0 Li Be B C N O F Ne 7 9 63,5 11 12 14 16 19 20 11 12 13 14 15 16 17 18 0,9 Na 1,2 Mg 1,5 Aℓ 1,8 Si 2,1 P 2,5 S 3,0 Cℓ Ar Approximate relative atomic mass 23 24 27 28 31 32 35,5 40 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 0,8 K 1,0 Ca 1,3 Sc 1,5 Ti 1,6 V 1,6 Cr 1,5 Mn 1,8 Fe 1,8 Co 1,8 Ni 1,9 Cu 1,6 Zn 1,6 Ga 1,8 Ge 2,0 As 2,4 Se 2,8 Br Kr 39 40 45 48 51 52 55 56 59 59 63,5 65 70 73 75 79 80 84 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 0,8 Rb 1,0 Sr 1,2 Y 1,4 Zr Nb 1,8 Mo 1,9 Tc 2,2 Ru 2,2 Rh 2,2 Pd 1,9 Ag 1,7 Cd 1,7 In 1,8 Sn 1,9 Sb 2,1 Te 2,5 I Xe 86 88 89 91 92 96 101 103 106 108 112 115 119 122 128 127 131 55 56 57 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 0,7 Cs 0,9 Ba La 1,6 Hf Ta W Re Os Ir Pt Au Hg 1,8 Tℓ 1,8 Pb 1,9 Bi 2,0 Po 2,5 At Rn 133 137 139 179 181 184 186 190 192 195 197 201 204 207 209 87 88 89 0,7 Fr 0,9 Ra Ac 226 58 59 60 61 62 63 64 65 66 67 68 69 70 71 Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu 140 141 144 150 152 157 159 163 165 167 169 173 175 90 91 92 93 94 95 96 97 98 99 100 101 102 103 Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr 232 238 Copyright reserved