Maharashtra 12th HSC Chemistry Question Paper with Solution: Download PDF

The Maharashtra Board Class 12 Chemistry Previous Year Question Papers with Solutions for the last three years are very useful for students studying for their final class 12 Maharashtra board exam. These papers clearly depict the pattern of questions and their distribution, pour out the scheme of marks, and definitely give an idea about how to distribute time during the exam among all parts. By continuously practicing these papers, one would be able to get the feel of the exam, know the important topics, and perceive the stress being mapped onto various segments of the syllabus.

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This Story also Contains

1. Maharashtra State Board 12th Chemistry Previous Year Question Papers Trends
2. Maharashtra Class 12 Chemistry Question Paper with Complete Solution
3. Benefits of Practicing the Maharashtra 12th Board Chemistry Question Papers

Here, with these question papers, come their solutions tailored meticulously by subject experts so that students get an exact and elaborative explanation. This helps in the simplification of complex concepts and thereby enhances understanding and strengthens learning processes.

This also helps in the development of their time management skills, due to which they spend their time effectively in completing the exam within the given time frame.

Maharashtra State Board 12th Chemistry Previous Year Question Papers Trends

Analysis of the Maharashtra State Board class 12 Chemistry previous year question papers brings out certain significant trends that can guide students in their preparation. During the last few years, the question papers have maintained a balanced mix of theoretical problems and numerical problems, pointing toward the comprehensiveness of the prescribed syllabus. Some key trends that were spotted are as follows:

Topics Treated: Trends in Maharashtra State Board Class 12 Chemistry Last 3 Years

Year 2024: The very recent paper in 2024 comprises a balanced mixture of topics; however, questions on solid state, chemical kinetics, and polymers have been predominantly featured. Some of the practical-based and experiment-based questions were on trends of modernity towards application-based learning. That is the way of times in education and one of the major moves by the Maharashtra board towards application-based learning.

Year 2023: The 2023 paper had slightly different questions but still maintained a heavy focus on Organic Chemistry and Solutions. Some specific areas that were significantly assessed include reaction mechanisms, alcohols, phenols, ethers, and types of solutions. This could be due to the emerging trend to adapt the examination content according to entrance examinations to various fields, including Medical and Pharmaceutical studies. This means an emphasis on some foundational concepts that are very fundamental in higher studies within these fields.

Year 2022: The paper in 2022 was majorly focused on Physical Chemistry, with emphasis on thermodynamics, chemical kinetics, and chemical equilibrium. Many questions were numerically based, especially those on reaction rates, activation energy, and the equilibrium constant, another hallmark of applications of chemistry as against its mere comprehending phase. This emphasis is part of a more universal trend in education toward problem-solving and analytical skills.

Maharashtra Class 12 Chemistry Question Paper with Complete Solution

Q1. Explain Wolf-Kishner reduction reaction.

Solution: The Wolf-Kishner reduction is a reaction that reduces the carbonyl group of aldehydes and ketones to a methylene group on treatment with zinc-amalgam and hydrazine followed by heating with sodium or potassium hydroxide in high boiling solvent like ethylene glycol (Wolf-Kishner reduction).

Wolf-Kishner reduction is used to synthesize straight chain alkyl substituted benzenes which is not possible by FriedelCrafts alkylation reaction.

Q2. Write postulates of Werner's theory of coordination complexes.

Solution: The postulates of Werner's theory are as follows:

1. Unlike metal salts, the metal in a complex possesses two types of valencies: primary (ionizable) valency and secondary (nonionizable) valency.
2. The ionizable sphere consists of entities which satisfy the primary valency of the metal. Primary valencies are generally satisfied by anions.
3. The secondary coordination sphere consists of entities which satisfy the secondary valencies and are non-ionizable. The secondary valencies for a metal ion are fixed and satisfied by either anions or neutral ligands. The number of secondary valencies is equal to the coordination number.
4. The secondary valencies have a fixed spatial arrangement around the metal ion.

Q3. Convert the cumene to phenol.

Solution: Cumene when undergoes oxidation in the presence of Oxygen followed by a reaction with conc. sulphuric acid forms phenol as a product.

Q 4. Explain the anomalous behaviour of oxygen in group 16 with respect to:

1. Atomicity
2. Magnetic property
3. Oxidation state

Solution: Anomalous behaviour of oxygen:

1. Atomicity: Oxygen is a diatomic molecule O2while others are polyatomic molecules. For example P4, S8.
2. Magnetic property: Oxygen is paramagnetic while others are diamagnetic.
3. Oxidation state: Oxygen shows -2,-1, and +2 oxidation states while other elements show, -2,+2,+4,+6 oxidation states. Oxygen can not exhibit a higher oxidation state due to the absence of vacant d orbitals.

Apart from these five questions, you can download the complete last three-year question with solutions by clicking on the below link.

Download Complete PDF Here - Maharashtra HSC Chemistry Previous Year Question Paper with Solutions

Benefits of Practicing the Maharashtra 12th Board Chemistry Question Papers

• Understanding the Exam Pattern: Practicing previous year question papers helps students become familiar with the exam pattern, types of questions, and the marking scheme.
• Time Management: By regularly solving these papers, students can learn to manage their time effectively during the exam, ensuring they can attempt all questions without last-minute panic.
• Boosting Confidence: Familiarity with the types of questions and the overall exam structure boosts confidence, reducing exam-related anxiety and helping students perform better.
• Identifying Important Topics: Analyzing previous year papers helps in identifying frequently asked questions and important topics, enabling focused and strategic study.
• Improving Speed and Accuracy: Regular practice enhances problem-solving speed and accuracy, ensuring that students can complete their exams efficiently and correctly.
• Self-Assessment: Solving these papers provides an opportunity for self-assessment, allowing students to identify their strengths and areas needing improvement.
• Exposure to Different Question Types: Students gain exposure to a variety of question types, helping them develop strategies to tackle multiple-choice questions, short answers, and long-form answers effectively.
• Enhanced Revision: Practicing these papers serves as an effective revision tool, reinforcing the concepts learned and ensuring thorough preparation for the final exam.

Conclusion

While preparing for the Class 12 Chemistry examination, remember that regular practice and consistency are your best friends. PYQs will give you the significant edge you need in filtering important topics and making you aware of what types of questions to anticipate. Use summary notes, flashcards, and regular revision to stamp the concepts in your mind. Also, do not hesitate to ask for help whenever needed. Keep at it, and your speed and accuracy will come. It requires only a well-planned strategy with a dedicated effort to enable you to excel in your Chemistry exam, setting a very strong base for your studies in the future. Keep yourself motivated, be consistent, and believe you can do it. Good luck!