Chemistry is among the most high-scoring areas in the AEEE exam 2026, if prepared in a planned manner. Over the years, there is a particular trend in the repetition of concepts as well as types of questions in the AEEE Chemistry test, especially based on core NCERT Class 11 & 12 topics. Students who prepare on the basis of previous-year question papers will find a particular benefit. This article has given an in-depth analysis of the past 5 years' question papers for AEEE Chemistry and has shortlisted the 25-30 most repeated and high-frequency questions. These questions would come from the main chapters, such as Stoichiometry, Atomic Structure, Chemical Bonding, Thermodynamics, Electrochemistry, and Basic Organic Chemistry. If your target is to score the highest marks in the least amount of time, identifying AEEE Chemistry most repeated questions and solving them for 2026 can be a smart strategy.

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Top 30 Most Repeated & High-Yield AEEE Chemistry Questions (Last 5 Years)

Going by the last 5 years' question paper trends and analysis, we have curated a list of 30 most repeated questions from high-weightage topics, like Mole Concept, Chemical Bonding, Thermodynamics etc. for students to review and practice for the best outcome.

Stoichiometry & Mole Concept

1. Calculate the number of moles in 18 g of water.

2. If 2 moles of H₂ react completely with 1 mole of O₂, how many moles of H₂O are formed?

3. Percentage composition of carbon in CO₂.

4. Find the limiting reactant when 10 g of A reacts with 15 g of B, given a balanced equation.

5. Convert 0.5 mol fraction into mass percent in a binary mixture.

Atomic Structure & Periodicity

1. Write the electronic configuration of Cr and justify why it is an exception to the Aufbau principle.

2. Which is more electronegative: F or O?

3. Order these atoms in increasing atomic radius: Na, Mg, Al.

4. Identify the species that is paramagnetic: O₂²⁻, O₂⁻, or O₂.

5. Which element has the highest ionization energy among Be, B, and C?

Chemical Bonding & Molecular Structure

1. Predict the shape and hybridization of SF₄.

2. Why is H₂O bent while CO₂ is linear?

3. Compare the bond polarity between H–F and H–Cl.

4. State whether CO is paramagnetic or diamagnetic.

5. Which has a higher bond order: N₂ or O₂?

Thermodynamics & Energetics

1. Given ΔH and ΔS, calculate ΔG for a reaction at 298 K and tell whether it is spontaneous.

2. Use Hess’s Law to find the enthalpy change for: C(graphite) + ½ O₂ → CO

3. If ΔH > 0 and ΔS > 0, at what temperature will the process become spontaneous?

Chemical Equilibrium

1. For the reaction N₂ + 3H₂ ⇌ 2NH₃, express the equilibrium constant expression Kc.

2. What happens to the position of equilibrium if the pressure is increased for the above reaction?

3. Calculate Kp given Kc and total pressure (using the gas equation).

Electrochemistry

1. Write the cell notation and calculate the standard cell potential for a Zn–Cu galvanic cell.

2. Using the Nernst equation, determine the cell potential when the concentrations are not 1M.

3. Identify which metal will be oxidised first: Zn or Fe (given their reduction potentials).

Kinetics

1. For a reaction A → products, the rate doubles when [A] is doubled. What is the order of reaction?

2. For a first-order reaction, the half-life is independent of initial concentration. Calculate t_{1/2} if k = 0.0693 day^{-1}.

3. Compare half-lives for zero, first, and second-order reactions: t_{1/2} = ? for each.

4. The rate doubles from 300 K to 310 K. Calculate activation energy using Arrhenius equation (R = 8.314 J/mol·K).

5. For 2A + B → products, if rate = k[A]^2[B], what is the overall order?

6. Explain how a catalyst affects activation energy and reaction rate.

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Why do Chemistry questions repeat in AEEE?

The Chemistry questions listed above are directly aligned with NCERT 11th and 12th std. topics and often test your knowledge of fundamental concepts around the syllabus. AlthoughAEEE syllabus 2026is not as vast as JEE Mains exam syllabus,AEEE exam pattern 2026does follows JEE style questions, where almost 70-80% of the questions are repeated from core topics, such as Integrated Rate Equations, Half-life Problems, Enthalpy and Hess's Law, Polarity Determination, and so on. However, don't expect the exact questions with the same numerical value to repeat year after year. Rather, focus on the concepts because the main idea is to test how well you apply conceptual knowledge to solve numerical questions with changing values.

Best Practices to Top AEEE Chemistry 2026 Section

Apart from solving the frequently asked most repeated questions from Chemistry papers, you should also follow these tips to prepare effectively for thee upcoming exam.

• Emphasis on NCERT​​​​​​:The majority of the questions based on Chemistry in the AEEE are either taken from or resemble NCERT class 11&12 concepts, majorly focusing on Inorganic and Physical Chemistry. So don't skip these textbooks. However, don't solely rely on them either. Back up your NCERT knowledge with Chemistry specificAEEE best books 2026for better problem-solving techniques and revision.

• Solving Past Papers:PracticeAEEE previous year question papersfrom the last ten years (2015-2025). Recognize the key changes, question style, topic relevance. Solving PYQs is also a good practice to improve time management and accuracy.

• Topic-wise Revision:Create formula sheets for topics for quick and easy revision. Write down important reactions and numerical questions from Thermodynamics, Equilibrium, Electrochemistry & Organic Reactions on sticky notes or prepare flowcharts – keep these popping up.

• Mock Tests & Time Management:Along with AEEE most repeated Chemistry questions, pay attention toAEEE mock test 2026to get more familiar with the latest paper pattern and question format. Timed simulation tests help increase speed and point out subjects where easy marks can be obtained.

AEEE Chemistry repeat questions are all about understanding patterns and being familiar with the most commonly asked topics. A thorough examination of the last 5-10 years of question papers reveals the fact that around 60-70% questions in Chemistry revolve around 12th grade NCERT chapters and topics. By practising AEEE Chemistry sample questions and taking mock tests consistently, you can boost your overall score in the exam. Rather than preparing haphazardly, follow a smart strategy with PYQs allowing precision and time management during the test.

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