Why should you read exam reports? They first tell you what students did very well on the exam. In the second, they inform the students what they did poorly. In addition they will tell you what subjects caused problems for students and the reason for that.
If you’re trying to achieve AQA A-Level Chemistry This is the most important advice for.
Being aware of the most the most frequent exam mistakes is something you should avoid. The difficult questions can benefit you expand your knowledge in addition to boost the analytical skills which is why they are essential in your preparation to take the exam. The subjects that are frequently identified as problematic areas are the ones you should focus on when studying.
This article analyzed the exam reports that are available of AQA AS chemistry and listed the questions described in a variety of ways as challenging. They’re typically tests with a an extremely low rate of success (i.e. just a tiny fraction of students answered them correctly).
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Are you an AQA student looking to test your skills against the toughest AS questions This article is designed ideal for you.
You can utilize this article in a variety of ways:
- Make use of it to locate and endeavor every difficult question about a specific topic.
- Utilize it to plan your revision. You should also dedicate extra time to mastering difficult topics I’ve given you
- Utilize it to locate the tough questions that are in every AS paper, so that you can make use of them to expand the knowledge you have and talent
Not studying AQA A-Level chemistry? Let us know if you’d prefer to read an article similar to CAIE, Edexcel, or OCR A-Level Chemistry.
Recurring Topics That Students Found Difficult
These are the subjects that are likely to be discussed often in the most difficult AS questions:
Amount of Substance Calculations
- Multistep calculations, particularly ones that involve an ideal gas equation.
- Practical calculations based on data, new problems that have not been addressed in previous research, and the limitation of reactions.
- Calculations involving density, nonstandard units, or huge or very small amounts.
- The use of algebra in different calculations, and the use to Avogadro’s continuous.
- Writing half-equations and ionic equations.
Atomic Structure
- Transition metal Ions as well as their configurations of electrons.
- The fundamentals are the basis for Time-of-Flight (TOF) mass spectrum analysis and the ability to predict mass spectra, particularly peak ratios of m/z.
- Calculations for Multistep ToF Mass Spectrometry.
Bonding & Structure
- Intermolecular forces, specifically connecting intermolecular forces with physical properties like melt and boiling point.
- The popular misconception that boiling or melting covalent substances causes breaking of covalent bonds is often observed.
- Determining the shape of unknown molecules and the shapes of ions.
Energetics
- Formulating equations to solve for specific enthalpy adjustments.
- Calculations based upon calorimetry data that are based on limit reactants.
- A few unrelated applications of Hess’s law.
- Bond calculations involving enthalpy, particularly that require rearranging equations.
Equilibrium
- Calculation of equilibrium moles using Kc.
- The impact of temperature on yield and equilibrium.
- Understanding the conditions that compromise industrial processes.
Group 17 Halogens
- The Redox chemistry of halideions with sulfuric acid concentrated.
- It is possible to create redox equations, or half-equations to describe halogen chemistry.
Organic Chemistry
- Understanding the mechanisms involved in non-symmetrical alkenes and the cyclic molecules.
- Interpreting skeletal formulae.
- The identification and the number of isomers using molecular formulas.
- Monomers and drawing units in polymers.
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Practical Chemistry
- A thorough understanding of devices and their functions practical applications, as well as the underlying principles of specific techniques was frequently not to be present.
- Exactly describing experiments.
- Recommending improvements to tests.
- Finding the perfect method to meet a particular requirement.
Qualitative Analysis
- Recognizing or distinguishing the organic functional group together tests.
- Testing for gases and ions to differentiate and identify compounds.
Redox
- Writing balanced equations for redox and formulating half-equations.
Level of Response Questions
- These questions, which have six marks, require an organized and well-thought-out answer that encompasses diverse marks. They are a significant determinant for all AQA AS examinations.
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