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Integer Answer Type Questions: Organic Chemistry - Some Basic Principles & Technique | JEE Advanced | 35 Years Chapter wise Previous Year Solved Papers for JEE PDF Download

Q.1. The total number of cyclic structural as well as stereo isomers possible for a compound with the molecular formula C5H10 is

Ans. 7

Solution. The seven possible cyclic structural and stereoisomers are

Integer Answer Type Questions: Organic Chemistry - Some Basic Principles & Technique | JEE Advanced | 35 Years Chapter wise Previous Year Solved Papers for JEEInteger Answer Type Questions: Organic Chemistry - Some Basic Principles & Technique | JEE Advanced | 35 Years Chapter wise Previous Year Solved Papers for JEE

Integer Answer Type Questions: Organic Chemistry - Some Basic Principles & Technique | JEE Advanced | 35 Years Chapter wise Previous Year Solved Papers for JEEInteger Answer Type Questions: Organic Chemistry - Some Basic Principles & Technique | JEE Advanced | 35 Years Chapter wise Previous Year Solved Papers for JEE


Q. 2. The total number of cyclic isomers possible for a hydrocarbon with the molecular formula C4H6 is 5.

Ans. 5

Solution. The number of cyclic isomers for a hydr ocarbon with molecular formula C4H6 is 5.

The structures are

Integer Answer Type Questions: Organic Chemistry - Some Basic Principles & Technique | JEE Advanced | 35 Years Chapter wise Previous Year Solved Papers for JEEInteger Answer Type Questions: Organic Chemistry - Some Basic Principles & Technique | JEE Advanced | 35 Years Chapter wise Previous Year Solved Papers for JEE


Q. 3. The maximum number of isomers (including stereoisomers) that are possible on monochlorination of the following compound is

Integer Answer Type Questions: Organic Chemistry - Some Basic Principles & Technique | JEE Advanced | 35 Years Chapter wise Previous Year Solved Papers for JEE

Ans. 8

Solution.

Integer Answer Type Questions: Organic Chemistry - Some Basic Principles & Technique | JEE Advanced | 35 Years Chapter wise Previous Year Solved Papers for JEE   Enantiomeric pair = 2
Integer Answer Type Questions: Organic Chemistry - Some Basic Principles & Technique | JEE Advanced | 35 Years Chapter wise Previous Year Solved Papers for JEE        Two enantiomeric pairs = 4
Integer Answer Type Questions: Organic Chemistry - Some Basic Principles & Technique | JEE Advanced | 35 Years Chapter wise Previous Year Solved Papers for JEE      = 1
Integer Answer Type Questions: Organic Chemistry - Some Basic Principles & Technique | JEE Advanced | 35 Years Chapter wise Previous Year Solved Papers for JEE     = 1 

Total = 2 + 4 + 1 + 1 = 8


Q. 4. The total number of contributing structures showing hyperconjugation (involving C-H bonds) for the following carbocation is

Integer Answer Type Questions: Organic Chemistry - Some Basic Principles & Technique | JEE Advanced | 35 Years Chapter wise Previous Year Solved Papers for JEE

Ans. 6

Solution.

Integer Answer Type Questions: Organic Chemistry - Some Basic Principles & Technique | JEE Advanced | 35 Years Chapter wise Previous Year Solved Papers for JEE

a = 3 Hyperconjugative H's
b = 2 Hyperconjugative H's
c = 1 Hyperconjugative H


Q. 5. The total number(s) of stable conformers with non-zero dipole moment for the following compound is (are)

Integer Answer Type Questions: Organic Chemistry - Some Basic Principles & Technique | JEE Advanced | 35 Years Chapter wise Previous Year Solved Papers for JEE

Ans. 3

Solution. 

Integer Answer Type Questions: Organic Chemistry - Some Basic Principles & Technique | JEE Advanced | 35 Years Chapter wise Previous Year Solved Papers for JEE

Following three conformers (with μ ≠ 0) are possible

Integer Answer Type Questions: Organic Chemistry - Some Basic Principles & Technique | JEE Advanced | 35 Years Chapter wise Previous Year Solved Papers for JEEInteger Answer Type Questions: Organic Chemistry - Some Basic Principles & Technique | JEE Advanced | 35 Years Chapter wise Previous Year Solved Papers for JEE


Q. 6. The total number of stereoisomers that can exist for M is

Ans. 2

Solution. The molecule cannot show geometrical isomerism, so only its mirror image will be the other stereoisomer.

Integer Answer Type Questions: Organic Chemistry - Some Basic Principles & Technique | JEE Advanced | 35 Years Chapter wise Previous Year Solved Papers for JEE

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FAQs on Integer Answer Type Questions: Organic Chemistry - Some Basic Principles & Technique - JEE Advanced - 35 Years Chapter wise Previous Year Solved Papers for JEE

1. What are the basic principles of organic chemistry?
Ans. The basic principles of organic chemistry include the study of the structure, properties, composition, reactions, and synthesis of organic compounds. These compounds mainly consist of carbon atoms bonded to hydrogen, along with other elements such as oxygen, nitrogen, sulfur, and halogens.
2. What are some common techniques used in organic chemistry?
Ans. Some common techniques used in organic chemistry are: 1. Distillation: Used to separate liquids based on their boiling points. 2. Chromatography: Separates and analyzes mixtures based on their different affinities for a stationary phase and a mobile phase. 3. Extraction: Used to separate compounds from a mixture based on their solubility in different solvents. 4. Spectroscopy: Analyzes the interaction of matter with electromagnetic radiation to determine the structure and composition of organic compounds. 5. Crystallization: Used to purify solid compounds by dissolving them in a suitable solvent and then allowing them to slowly crystallize.
3. What is the importance of organic chemistry in JEE Advanced exam?
Ans. Organic chemistry is an important topic in the JEE Advanced exam as it carries a significant weightage in the chemistry section. Questions related to organic chemistry test the understanding of various concepts, reactions, mechanisms, and the ability to analyze and predict the behavior of organic compounds. A strong grasp of organic chemistry is essential for scoring well in the JEE Advanced exam.
4. How can I improve my understanding of organic chemistry for the JEE Advanced exam?
Ans. To improve your understanding of organic chemistry for the JEE Advanced exam, you can follow these strategies: 1. Study the fundamentals: Start by understanding the basic concepts, including nomenclature, functional groups, and reaction mechanisms. 2. Practice regularly: Solve a variety of organic chemistry problems from previous years' question papers and practice books to enhance your problem-solving skills. 3. Create visual aids: Use flowcharts, diagrams, and mnemonic devices to help you remember reaction mechanisms and key concepts. 4. Seek clarification: If you find any topics challenging, consult your teachers, classmates, or online resources for further explanation. 5. Revise and review: Regularly revise the topics you have learned and make sure to review them periodically to reinforce your understanding.
5. Are there any specific topics in organic chemistry that are frequently asked in the JEE Advanced exam?
Ans. While the JEE Advanced exam can cover a wide range of topics in organic chemistry, some specific topics are frequently asked. These include: 1. General organic chemistry: Nomenclature, isomerism, electronic effects, acidity and basicity, and resonance. 2. Reaction mechanisms: Understanding the mechanisms of reactions such as nucleophilic substitution, elimination, addition, and oxidation-reduction. 3. Alkanes, alkenes, and alkynes: Properties, preparation, reactions, and stereochemistry of these hydrocarbons. 4. Aromatic compounds: Structure, reactions, and aromaticity. 5. Biomolecules: Carbohydrates, proteins, nucleic acids, and lipids, along with their structures and functions.
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