Class 11 Exam > Class 11 Questions > Direction: In the following questions a stat...
Start Learning for Free
Direction: In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.
Assertion (A): Energy of resonance hybrid is equal to the average of energies of all canonical forms.
Reason (R): Resonance hybrid cannot be presented by a single structure.
- a)Both A and R are correct and R is the correct explanation of A.
- b)Both A and R are correct but R is not the correct explanation of A.
- c)Both A and R are not correct.
- d)A is not correct but R is correct
Correct answer is option 'D'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Direction: In the following questions a statement of Assertion (A) fo...
Canonical structures always have more energy than resonance hybrid. Resonance hybrids are always more stable than any of the canonical structures. The delocalization of electrons lowers the orbitals energy and gives stability.
View all questions of this test
Most Upvoted Answer
Direction: In the following questions a statement of Assertion (A) fo...
Assertion (A): Energy of resonance hybrid is equal to the average of energies of all canonical forms.
Reason (R): Resonance hybrid cannot be presented by a single structure.
The correct option out of the choices given below the question is D, which means Assertion (A) is not correct but Reason (R) is correct.
Explanation:
Resonance is a phenomenon observed in molecules where the electrons are delocalized and can be represented by multiple resonance structures or canonical forms. The actual electronic structure of the molecule is a hybrid of these resonance structures, known as the resonance hybrid.
Assertion (A): Energy of resonance hybrid is equal to the average of energies of all canonical forms.
This statement is incorrect. The energy of the resonance hybrid is not equal to the average of energies of all canonical forms. In a resonance hybrid, the energy is actually lower than the energy of any of the individual canonical forms. This is because the delocalization of electrons in the resonance hybrid leads to greater stability. The resonance hybrid represents a more stable state of the molecule compared to any single canonical form.
Reason (R): Resonance hybrid cannot be presented by a single structure.
This statement is correct. Resonance hybrid cannot be represented by a single structure because the actual electronic structure of the molecule is a combination or hybrid of all the resonance structures. Each resonance structure contributes to the overall stability and properties of the molecule, and therefore, it is not possible to represent the molecule by a single structure.
The resonance hybrid is a representation of the actual electronic structure of the molecule, which takes into account the delocalization of electrons. It is important to note that the resonance hybrid is not a real physical structure but a theoretical concept used to describe the electronic structure of molecules with delocalized electrons.
In conclusion, the energy of the resonance hybrid is lower than the energy of any single canonical form, and the resonance hybrid cannot be represented by a single structure.
Reason (R): Resonance hybrid cannot be presented by a single structure.
The correct option out of the choices given below the question is D, which means Assertion (A) is not correct but Reason (R) is correct.
Explanation:
Resonance is a phenomenon observed in molecules where the electrons are delocalized and can be represented by multiple resonance structures or canonical forms. The actual electronic structure of the molecule is a hybrid of these resonance structures, known as the resonance hybrid.
Assertion (A): Energy of resonance hybrid is equal to the average of energies of all canonical forms.
This statement is incorrect. The energy of the resonance hybrid is not equal to the average of energies of all canonical forms. In a resonance hybrid, the energy is actually lower than the energy of any of the individual canonical forms. This is because the delocalization of electrons in the resonance hybrid leads to greater stability. The resonance hybrid represents a more stable state of the molecule compared to any single canonical form.
Reason (R): Resonance hybrid cannot be presented by a single structure.
This statement is correct. Resonance hybrid cannot be represented by a single structure because the actual electronic structure of the molecule is a combination or hybrid of all the resonance structures. Each resonance structure contributes to the overall stability and properties of the molecule, and therefore, it is not possible to represent the molecule by a single structure.
The resonance hybrid is a representation of the actual electronic structure of the molecule, which takes into account the delocalization of electrons. It is important to note that the resonance hybrid is not a real physical structure but a theoretical concept used to describe the electronic structure of molecules with delocalized electrons.
In conclusion, the energy of the resonance hybrid is lower than the energy of any single canonical form, and the resonance hybrid cannot be represented by a single structure.
Attention Class 11 Students!
To make sure you are not studying endlessly, EduRev has designed Class 11 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 11.
|
Explore Courses for Class 11 exam
|
|
Similar Class 11 Doubts
Top Courses for Class 11View all
Direction: In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A): Energy of resonance hybrid is equal to the average of energies of all canonical forms.Reason (R): Resonance hybrid cannot be presented by a single structure.a)Both A and R are correct and R is the correct explanation of A.b)Both A and R are correct but R is not the correct explanation of A.c)Both A and R are not correct.d)A is not correct but R is correctCorrect answer is option 'D'. Can you explain this answer?
Question Description
Direction: In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A): Energy of resonance hybrid is equal to the average of energies of all canonical forms.Reason (R): Resonance hybrid cannot be presented by a single structure.a)Both A and R are correct and R is the correct explanation of A.b)Both A and R are correct but R is not the correct explanation of A.c)Both A and R are not correct.d)A is not correct but R is correctCorrect answer is option 'D'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Direction: In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A): Energy of resonance hybrid is equal to the average of energies of all canonical forms.Reason (R): Resonance hybrid cannot be presented by a single structure.a)Both A and R are correct and R is the correct explanation of A.b)Both A and R are correct but R is not the correct explanation of A.c)Both A and R are not correct.d)A is not correct but R is correctCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Direction: In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A): Energy of resonance hybrid is equal to the average of energies of all canonical forms.Reason (R): Resonance hybrid cannot be presented by a single structure.a)Both A and R are correct and R is the correct explanation of A.b)Both A and R are correct but R is not the correct explanation of A.c)Both A and R are not correct.d)A is not correct but R is correctCorrect answer is option 'D'. Can you explain this answer?.
Direction: In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A): Energy of resonance hybrid is equal to the average of energies of all canonical forms.Reason (R): Resonance hybrid cannot be presented by a single structure.a)Both A and R are correct and R is the correct explanation of A.b)Both A and R are correct but R is not the correct explanation of A.c)Both A and R are not correct.d)A is not correct but R is correctCorrect answer is option 'D'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Direction: In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A): Energy of resonance hybrid is equal to the average of energies of all canonical forms.Reason (R): Resonance hybrid cannot be presented by a single structure.a)Both A and R are correct and R is the correct explanation of A.b)Both A and R are correct but R is not the correct explanation of A.c)Both A and R are not correct.d)A is not correct but R is correctCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Direction: In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A): Energy of resonance hybrid is equal to the average of energies of all canonical forms.Reason (R): Resonance hybrid cannot be presented by a single structure.a)Both A and R are correct and R is the correct explanation of A.b)Both A and R are correct but R is not the correct explanation of A.c)Both A and R are not correct.d)A is not correct but R is correctCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Direction: In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A): Energy of resonance hybrid is equal to the average of energies of all canonical forms.Reason (R): Resonance hybrid cannot be presented by a single structure.a)Both A and R are correct and R is the correct explanation of A.b)Both A and R are correct but R is not the correct explanation of A.c)Both A and R are not correct.d)A is not correct but R is correctCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 11.
Download more important topics, notes, lectures and mock test series for Class 11 Exam by signing up for free.
Here you can find the meaning of Direction: In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A): Energy of resonance hybrid is equal to the average of energies of all canonical forms.Reason (R): Resonance hybrid cannot be presented by a single structure.a)Both A and R are correct and R is the correct explanation of A.b)Both A and R are correct but R is not the correct explanation of A.c)Both A and R are not correct.d)A is not correct but R is correctCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Direction: In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A): Energy of resonance hybrid is equal to the average of energies of all canonical forms.Reason (R): Resonance hybrid cannot be presented by a single structure.a)Both A and R are correct and R is the correct explanation of A.b)Both A and R are correct but R is not the correct explanation of A.c)Both A and R are not correct.d)A is not correct but R is correctCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Direction: In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A): Energy of resonance hybrid is equal to the average of energies of all canonical forms.Reason (R): Resonance hybrid cannot be presented by a single structure.a)Both A and R are correct and R is the correct explanation of A.b)Both A and R are correct but R is not the correct explanation of A.c)Both A and R are not correct.d)A is not correct but R is correctCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Direction: In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A): Energy of resonance hybrid is equal to the average of energies of all canonical forms.Reason (R): Resonance hybrid cannot be presented by a single structure.a)Both A and R are correct and R is the correct explanation of A.b)Both A and R are correct but R is not the correct explanation of A.c)Both A and R are not correct.d)A is not correct but R is correctCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Direction: In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A): Energy of resonance hybrid is equal to the average of energies of all canonical forms.Reason (R): Resonance hybrid cannot be presented by a single structure.a)Both A and R are correct and R is the correct explanation of A.b)Both A and R are correct but R is not the correct explanation of A.c)Both A and R are not correct.d)A is not correct but R is correctCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice Class 11 tests.
|
|
Explore Courses for Class 11 exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup