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Expected Number Of Questions On Aldehydes And Ketones In JEE, Previous Year No Of Questions

Explore the expected number of questions on Aldehydes and Ketones in JEE Main 2025 Session 1, along with effective preparation tips. Check out the previous years' trends to know the number of questions asked on the Aldehydes and Ketones chapter in past exams.
authorImagePratibha Bohra10 Jan, 2025
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Expected Number of Questions on Aldehydes and Ketones in JEE Main 2025 Session 1

Expected Number of Questions on Aldehydes and Ketones in JEE Main 2025 Session 1: Aldehydes and ketones are important topics in the chemistry section of the JEE Main 2025 Session 1 exam. These topics often carry high marks and are known for their application-based questions, making them important for aspirants to focus on. Understanding the concepts, reactions, and mechanisms related to Aldehydes and Ketones can help applicants score well in the exam.

By analyzing JEE previous years' question patterns, applicants can get an idea of the expected number of questions from these topics. Learn about the expected number of questions on Aldehydes and Ketones in JEE Main 2025 Session 1 to plan JEE Main 2025 preparation effectively.

Also read: JEE Main Sample Paper 2025 With Solutions For Class 11th, Class 12th And Droppers

Expected Number of Questions on Aldehydes and Ketones in JEE Main 2025 Session 1

The chapter "Aldehydes and Ketones" is a crucial topic in the JEE Main Chemistry Syllabus and consistently carries significant weightage in the exam. With JEE Main 2025 Session 1 scheduled from January 22 to 30, students must prepare strategically for this topic in order to secure high marks.

Based on previous trends, aspirants can expect 9 to 14 questions from Aldehydes and Ketones in the JEE Main 2025 January attempt . However, it is important to note that the number of questions may vary slightly across different exam sessions. By understanding this expected weightage, applicants can prioritize this chapter, practice its core concepts, and analyze related questions from previous exams to ensure comprehensive preparation.

Suggested read: JEE Main Exam Pattern Vs. JEE Advanced Exam Pattern

JEE Mains Number of Questions on Aldehydes and Ketones in Previous Years

To understand the importance of Aldehydes and Ketones in the JEE Main Chemistry section, it is helpful to review the number of questions asked on this topic in previous years. This provides insight into its weightage and helps applicants prepare strategically. Check out the total number of JEE Mains questions on Aldehydes and Ketones that appeared in the previous years, as outlined below.

  • In 2024, the topic appeared with 12 questions in the April session and 8 questions in the January session.
  • Similarly, in 2023, 8 questions were asked in the April session, while the January session featured 12 questions.
  • For 2022, the number of questions was consistent across both sessions, with 9 questions each in July and June.
  • In 2021, this topic appeared with 9 questions in August, while the July and March sessions each had 3 questions. Additionally, 9 questions were asked in February of the same year.
  • In 2020, Aldehydes and Ketones were covered with 11 questions in the September session and 5 questions in the January session.
  • Moving back to 2019, the April session included 6 questions, whereas the January session had a higher weightage with 14 questions.

These trends showcase that the weightage of Aldehydes and Ketones varies across sessions and years. Applicants should take this into account when planning their preparation for the upcoming JEE Main 2025 Session 1.

Also read: JEE Main Exam Centre 2025 (Out), City Intimation Slip Soon, State-Wise Centres

Preparation Tips for JEE Main 2025 Aldehydes and Ketones Chapter

Aldehydes and ketones form a crucial part of the JEE Main Chemistry syllabus and often carry significant weight in the exam. Preparing for this chapter requires a focused approach to understanding key concepts and practicing problem-solving techniques effectively. Below are some essential preparation tips tailored for this chapter:

  • Master the Nature of the Carbonyl Group: Begin by thoroughly understanding the nature of the carbonyl group (>C=O). Focus on its structure, polarity, and the factors influencing the reactivity of aldehydes and ketones. This foundational knowledge is important for solving questions based on chemical properties and reactions.
  • Learn Nucleophilic Addition Reactions: Pay close attention to nucleophilic addition reactions, including the addition of HCN, NH3, and their derivatives. These reactions are frequently tested in JEE Main. Practice questions that involve mechanisms and variations of these reactions to build confidence.
  • Study Important Reactions and Mechanisms: Dedicate time to important reactions such as Grignard reagent reactions, aldol condensation, Cannizzaro reactions, haloform reactions, and oxidation and reduction methods like Wolf-Kishner and Clemmensen reductions. These reactions are high-scoring areas, and a clear understanding of their mechanisms will help solve related problems quickly.
  • Focus on the Acidity of Alpha-Hydrogen: Questions related to the acidity of alpha-hydrogen in aldehydes and ketones are commonly asked in exams. It’s important to understand the factors that influence acidity, such as inductive and resonance effects. Practice problems involving aldol condensation will help strengthen the applicant's understanding of this topic and improve problem-solving skills.
  • Practice Chemical Tests: Learn chemical tests used to distinguish between aldehydes and ketones, such as Fehling’s test, Tollens’ test, and iodoform test. These are straightforward questions and provide an opportunity to secure marks easily.
  • Solve JEE Mock Tests: Aspirants can strengthen their preparation by regularly solving JEE Mock Tests. These tests provide a mix of previous years’ questions and new patterns, helping students familiarize themselves with the exam format, identify weak areas, and improve time management.

To improve JEE Main 2025 preparation, aspirants are encouraged to join the PW JEE Online Test Series . It gives applicants a structured way to practice with sets that are similar to the actual JEE exam. These mock tests help build confidence, increase speed, and sharpen problem-solving skills.

PW Online Test Series for JEE 2025
Name of the Test Series Price Link to Enroll
Prayas JEE 2025 Test Series INR 1,000 (50% OFF from INR 2,000) Explore Here!
Arjuna JEE 2025 Test Series INR 1,000 (50% OFF from INR 2,000) Explore Here!
Lakshya JEE 2025 Test Series INR 1,000 (50% OFF from INR 2,000) Explore Here!
  • Time Management and Revision: Set aside dedicated time for regular revision of important concepts and reactions. Use concise notes or flashcards to quickly review key points and mechanisms. JEE Revision Books by PW can also help applicants in streamlining their revision process and reinforcing their understanding.

Understanding the expected number of questions on Aldehydes and Ketones in JEE Main 2025 Session 1 is important for effective preparation. By reviewing past trends and focusing on key topics such as the nature of the carbonyl group, nucleophilic addition reactions, and important reactions like aldol condensation and the Cannizzaro reaction, aspirants can target high-scoring areas. With a strategic approach, aspirants can confidently solve questions from this chapter and improve their performance in the exam.

To further boost their JEE Main 2025 Session 1 preparation, aspirants can take advantage of the free JEE online classes offered by JEE Wallah . These classes cover important chemistry topics, including Aldehydes and Ketones, with detailed lessons and explanations. By utilizing these resources, aspirants can gain the confidence and knowledge needed to handle all related questions in the exam.

Study Material for JEE Main 2025 Preparation

Physics Wallah (PW) provides complete study material for JEE 2025 , crafted to help aspirants succeed in this competitive exam. The material includes in-depth theory notes, practice questions, previous years’ papers, and mock tests for Physics, Chemistry, and Mathematics. Each topic is explained with simple concepts and practical examples to build a solid understanding.

Study Material For JEE 2025
Checkout IIT JEE Books from PW Store
Checkout JEE Modules from PW Store
Checkout JEE Previous Year Papers from PW Store
Checkout JEE Question Banks from PW Store
Checkout JEE Revision Books from PW Store
Checkout JEE Test series from PW Store
Checkout JEE Crash Course from PW Store

Expected Number of Questions on Aldehydes and Ketones in JEE Main 2025 Session 1 FAQs

Ques. Is the Aldehydes and Ketones chapter important for JEE Main Chemistry 2025?

Ans. Yes, the Aldehydes and Ketones chapter is important for JEE Main Chemistry 2025 as it carries significant weightage and covers the most important concepts asked frequently in the past examinations.

Ques. How many questions are expected on Aldehydes and Ketones in JEE Main 2025 Session 1?

Ans. For JEE Main 2025 Session 1, the expected number of questions from the Aldehydes and Ketones chapter is between 9 and 14 questions.

Ques. What is the total number of questions expected to be asked in JEE Main 2025?

Ans. The total number of questions in the JEE Main 2025 exam generally consists of 90 questions—30 each from Physics, Chemistry, and Mathematics.

Ques. Is the chemistry section of the JEE Main 2025 January attempt going to be challenging?

Ans. The chemistry section of JEE Main 2025 January attempt may be tough, but with consistent preparation, focusing on important chapters like Aldehydes and Ketones, among others, aspirants can perform well.

Ques. Is it possible to score 70+ in the chemistry section of JEE Main 2025?

Ans. Yes, it is possible to score 70+ in the chemistry section of JEE Main 2025 with focused preparation. By understanding key topics, practicing regularly, and solving previous year’s questions, aspirants can improve their chances of scoring well in chemistry.
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