The Matrix 12 months 11 Chemistry Yearly Examination Paper accommodates questions primarily based on the brand new 12 months 11 Chemistry syllabus and covers the 4 modules of the 12 months 11 Chemistry course:
- Module 1: Properties & Constructions of Matter
- Module 2: Introduction to Quantitative Chemistry
- Module 3: Reactive Chemistry
- Module 4: Drivers of Reactions
We’ve got listed under a few of the hottest examination questions to your fast reference. You possibly can obtain the free Matrix 12 months 11 Chemistry Follow Paper:
Module 1: Properties & Construction of Matter
Generally requested examination questions on Module 1 Properties & Constructions of Matter are:
- Writing the electron configuration of parts and ions in spdf notation
- Explaining the bodily properties of drugs (metallic, ionic, covalent community, covalent molecular)
- Recalling and explaining periodic traits
Query 1 (1 mark)
Which VSEPR form at all times leads to a polar molecule?
(A) Linear
(B) Trigonal Planar
(C) Tetrahedral
(D) Bent
Query 2 (1 mark)
Write the complete digital configuration of a sodium atom.
Query 3 (1 mark)
Outline the time period “electronegativity’.
Query 4 (3 marks)
Clarify why methane has a decrease boiling level than water.
Generally requested examination questions on Module 1 Properties & Constructions of Matter are:
- Finishing mole calculations
- Finishing limiting reactant calculations
- Recalling and making use of gasoline legal guidelines
Query 5 (1 mark)
Which gasoline legislation describes the connection between strain and quantity?
(A) Boyle’s Regulation
(B) Charles’ Regulation
(C) Avogadro’s Regulation
(D) Homosexual-Lussac’s Regulation
Query 6 (5 marks)
3.75 g of potassium carbonate was positioned in 280 mL of 0.14 M hydrochloric acid. The next response happens:
Ok2CO3(aq) + 2HCl(aq) → 2KCl(aq) + CO2(g) + H2O(l)
(A) Write the complete ionic equation for this response.
(B) Write the web ionic equation for this response.
(C) What mass of potassium chloride might be produced?
Module 3: Reactive Chemistry
Generally requested examination questions on Module 3 Reactive Chemistry are:
- Classifying and writing equations for various response sorts
- Deciding on and mixing half-equations for redox reactions
- Calculating cell potentials
- Explaining modifications in response charges utilizing collision principle
Query 7 (1 mark)
A galvanic cell was constructed by connecting a graphite electrode in an answer of iron(II) nitrate and iron(III) nitrate, and a tine electrode in an answer of tin(II) chloride.
What’s the cell potential underneath commonplace situations?
(A) 0.91 V
(B) 0.63 V
(C) 030 V
(D) 1.68 V
Query 8 (6 marks)
2.37 g of aluminium was combusted in extra oxygen gasoline:
4Al(s) + 3O2(g) → 2Al2O3(s)
(a) What number of moles of aluminium reacted?
(b) What mass of aluminium oxide was fashioned?
(c) What number of atoms of oxygen reacted?
(d) Clarify, as regards to collision principle, how heating up the response combination would enhance the speed of this response.
(e) Establish two different methods to extend the speed of this response.
Query 9 (2 marks)
Steadiness the next half-equations by including coefficients and electrons, and mix them to type a balanced ionic equation.
| C2O42-(aq) | → | CO2(g) |
| Co3+(aq) | → | Co2+(aq) |
Module 4: Drivers of Reactions
Generally requested examination questions on Module 4 Drivers of Reactions are:
- Calculating response enthalpies from calorimetric knowledge
- Making use of Hess’s Regulation to power cycles
- Explaining response spontaneity as regards to Gibbs free power, enthalpy and entropy
Query 10 (1 mark)
In a calorimetry experiment to find out the enthalpy of answer of lithium hydroxide, the next knowledge have been collected:
| Mass of lithium hydroxide | 5.73 g |
| Mass of water | 265.1 g |
| Preliminary temperature of water | 17.5 °C |
| Closing temperature of water | 21.6 °C |
What’s the experimentally decided worth of ΔHsoln? The precise warmth capability of the answer is 4.18 x 103 J kg-1 Ok-1.
(a) − 4.54 kJ mol-1
(b) − 19.4 kJ mol-1
(c) − 4.64 kJ mol-1
(d) − 19.0 kJ mol-1
Query 11 (1 mark)
Given the next knowledge:
| N2(g) + 3H2(g) | → | 2NH3(g) | ΔH = − 115 kJ mol-1 |
| 2NH3(g) + 4H2O(l) | → | 2NO2(g) + 7H2(g) | ΔH = − 142.5 kJ mol-1 |
| H2O(l) | → | H2(g) + ½O2(g) | ΔH = − 43.7 kJ mol-1 |
What’s the enthalpy change for the next response?
N2(g) + 2O2(g) → 2NO2(g)
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