Class 12 Exam > Class 12 Questions > Only One Option Correct TypeDirection (Q. Nos...
Start Learning for Free
Only One Option Correct Type
Direction (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.
Q.
Cyanide anion has two atoms th at have lone pair of electrons. Either could act as nucleophile in the reaction. Yet in the vast majority of the cases, carbon acts as nucleophile and forms a bond to the substrate, why?
- a)Nitrogen is strongly solvated in hydroxylic solvents, it will be less reactive
- b)Carbon is more reactive in polar aprotic solvents, normally used for these SN2 reactions
- c)Carbon atoms are more basic than nitrogen
- d)The lone pair of electrons on C is in sp hybrid orbital
Correct answer is option 'C'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Only One Option Correct TypeDirection (Q. Nos. 1-8) This section conta...
Both carbon and nitrogen are capable of donating electron pair but carbon is better electron donor than nitrogen, carbon donates electron pair in most of the cases.Most Upvoted Answer
Only One Option Correct TypeDirection (Q. Nos. 1-8) This section conta...
Explanation:
The correct answer is option 'C' - Carbon atoms are more basic than nitrogen.
Reasons:
1. Basicity: Carbon atoms are more basic than nitrogen. In a reaction, the nucleophile is usually the species that can donate an electron pair (lone pair of electrons) to form a new bond with the substrate. Nitrogen has a higher electronegativity than carbon, making it more electronegative and less likely to donate its lone pair of electrons. On the other hand, carbon is less electronegative and has a greater tendency to donate its lone pair of electrons, making it a more effective nucleophile.
2. Stability of cyanide anion: The cyanide anion (CN-) is stabilized by resonance. The lone pair of electrons on the carbon atom can delocalize into the π* orbital of the C≡N triple bond, providing additional stability to the anion. This stability makes the carbon atom more reactive and more likely to act as a nucleophile.
3. Steric hindrance: Nitrogen has a smaller size than carbon, and the lone pair of electrons on nitrogen is more sterically hindered by the surrounding atoms. This steric hindrance makes it more difficult for nitrogen to approach the substrate and form a bond. Carbon, on the other hand, has a larger size and less steric hindrance, allowing it to more easily approach the substrate and form a bond.
4. Solvation effects: While solvation can affect the reactivity of nucleophiles, it is not the primary reason why carbon acts as a nucleophile in the vast majority of cases. Solvation effects can vary depending on the solvent used, but the basicity and stability of the cyanide anion are more significant factors in determining the reactivity of carbon as a nucleophile.
In summary, carbon atoms in cyanide anion are more basic, more reactive, and less sterically hindered than nitrogen. These factors make carbon more likely to act as a nucleophile and form a bond with the substrate in SN2 reactions.
The correct answer is option 'C' - Carbon atoms are more basic than nitrogen.
Reasons:
1. Basicity: Carbon atoms are more basic than nitrogen. In a reaction, the nucleophile is usually the species that can donate an electron pair (lone pair of electrons) to form a new bond with the substrate. Nitrogen has a higher electronegativity than carbon, making it more electronegative and less likely to donate its lone pair of electrons. On the other hand, carbon is less electronegative and has a greater tendency to donate its lone pair of electrons, making it a more effective nucleophile.
2. Stability of cyanide anion: The cyanide anion (CN-) is stabilized by resonance. The lone pair of electrons on the carbon atom can delocalize into the π* orbital of the C≡N triple bond, providing additional stability to the anion. This stability makes the carbon atom more reactive and more likely to act as a nucleophile.
3. Steric hindrance: Nitrogen has a smaller size than carbon, and the lone pair of electrons on nitrogen is more sterically hindered by the surrounding atoms. This steric hindrance makes it more difficult for nitrogen to approach the substrate and form a bond. Carbon, on the other hand, has a larger size and less steric hindrance, allowing it to more easily approach the substrate and form a bond.
4. Solvation effects: While solvation can affect the reactivity of nucleophiles, it is not the primary reason why carbon acts as a nucleophile in the vast majority of cases. Solvation effects can vary depending on the solvent used, but the basicity and stability of the cyanide anion are more significant factors in determining the reactivity of carbon as a nucleophile.
In summary, carbon atoms in cyanide anion are more basic, more reactive, and less sterically hindered than nitrogen. These factors make carbon more likely to act as a nucleophile and form a bond with the substrate in SN2 reactions.
|
Explore Courses for Class 12 exam
|
|
Similar Class 12 Doubts
Only One Option Correct TypeDirection (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.Q.Cyanide anion has two atoms th at have lone pair of electrons. Either could act as nucleophile in the reaction. Yet in the vast majority of the cases, carbon acts as nucleophile and forms a bond to the substrate, why?a)Nitrogen is strongly solvated in hydroxylic solvents, it will be less reactiveb)Carbon is more reactive in polar aprotic solvents, normally used for these SN2 reactionsc)Carbon atoms are more basic than nitrogend)The lone pair of electrons on C is in sp hybrid orbitalCorrect answer is option 'C'. Can you explain this answer?
Question Description
Only One Option Correct TypeDirection (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.Q.Cyanide anion has two atoms th at have lone pair of electrons. Either could act as nucleophile in the reaction. Yet in the vast majority of the cases, carbon acts as nucleophile and forms a bond to the substrate, why?a)Nitrogen is strongly solvated in hydroxylic solvents, it will be less reactiveb)Carbon is more reactive in polar aprotic solvents, normally used for these SN2 reactionsc)Carbon atoms are more basic than nitrogend)The lone pair of electrons on C is in sp hybrid orbitalCorrect answer is option 'C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Only One Option Correct TypeDirection (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.Q.Cyanide anion has two atoms th at have lone pair of electrons. Either could act as nucleophile in the reaction. Yet in the vast majority of the cases, carbon acts as nucleophile and forms a bond to the substrate, why?a)Nitrogen is strongly solvated in hydroxylic solvents, it will be less reactiveb)Carbon is more reactive in polar aprotic solvents, normally used for these SN2 reactionsc)Carbon atoms are more basic than nitrogend)The lone pair of electrons on C is in sp hybrid orbitalCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Only One Option Correct TypeDirection (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.Q.Cyanide anion has two atoms th at have lone pair of electrons. Either could act as nucleophile in the reaction. Yet in the vast majority of the cases, carbon acts as nucleophile and forms a bond to the substrate, why?a)Nitrogen is strongly solvated in hydroxylic solvents, it will be less reactiveb)Carbon is more reactive in polar aprotic solvents, normally used for these SN2 reactionsc)Carbon atoms are more basic than nitrogend)The lone pair of electrons on C is in sp hybrid orbitalCorrect answer is option 'C'. Can you explain this answer?.
Only One Option Correct TypeDirection (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.Q.Cyanide anion has two atoms th at have lone pair of electrons. Either could act as nucleophile in the reaction. Yet in the vast majority of the cases, carbon acts as nucleophile and forms a bond to the substrate, why?a)Nitrogen is strongly solvated in hydroxylic solvents, it will be less reactiveb)Carbon is more reactive in polar aprotic solvents, normally used for these SN2 reactionsc)Carbon atoms are more basic than nitrogend)The lone pair of electrons on C is in sp hybrid orbitalCorrect answer is option 'C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Only One Option Correct TypeDirection (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.Q.Cyanide anion has two atoms th at have lone pair of electrons. Either could act as nucleophile in the reaction. Yet in the vast majority of the cases, carbon acts as nucleophile and forms a bond to the substrate, why?a)Nitrogen is strongly solvated in hydroxylic solvents, it will be less reactiveb)Carbon is more reactive in polar aprotic solvents, normally used for these SN2 reactionsc)Carbon atoms are more basic than nitrogend)The lone pair of electrons on C is in sp hybrid orbitalCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Only One Option Correct TypeDirection (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.Q.Cyanide anion has two atoms th at have lone pair of electrons. Either could act as nucleophile in the reaction. Yet in the vast majority of the cases, carbon acts as nucleophile and forms a bond to the substrate, why?a)Nitrogen is strongly solvated in hydroxylic solvents, it will be less reactiveb)Carbon is more reactive in polar aprotic solvents, normally used for these SN2 reactionsc)Carbon atoms are more basic than nitrogend)The lone pair of electrons on C is in sp hybrid orbitalCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Only One Option Correct TypeDirection (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.Q.Cyanide anion has two atoms th at have lone pair of electrons. Either could act as nucleophile in the reaction. Yet in the vast majority of the cases, carbon acts as nucleophile and forms a bond to the substrate, why?a)Nitrogen is strongly solvated in hydroxylic solvents, it will be less reactiveb)Carbon is more reactive in polar aprotic solvents, normally used for these SN2 reactionsc)Carbon atoms are more basic than nitrogend)The lone pair of electrons on C is in sp hybrid orbitalCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
Here you can find the meaning of Only One Option Correct TypeDirection (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.Q.Cyanide anion has two atoms th at have lone pair of electrons. Either could act as nucleophile in the reaction. Yet in the vast majority of the cases, carbon acts as nucleophile and forms a bond to the substrate, why?a)Nitrogen is strongly solvated in hydroxylic solvents, it will be less reactiveb)Carbon is more reactive in polar aprotic solvents, normally used for these SN2 reactionsc)Carbon atoms are more basic than nitrogend)The lone pair of electrons on C is in sp hybrid orbitalCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Only One Option Correct TypeDirection (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.Q.Cyanide anion has two atoms th at have lone pair of electrons. Either could act as nucleophile in the reaction. Yet in the vast majority of the cases, carbon acts as nucleophile and forms a bond to the substrate, why?a)Nitrogen is strongly solvated in hydroxylic solvents, it will be less reactiveb)Carbon is more reactive in polar aprotic solvents, normally used for these SN2 reactionsc)Carbon atoms are more basic than nitrogend)The lone pair of electrons on C is in sp hybrid orbitalCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Only One Option Correct TypeDirection (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.Q.Cyanide anion has two atoms th at have lone pair of electrons. Either could act as nucleophile in the reaction. Yet in the vast majority of the cases, carbon acts as nucleophile and forms a bond to the substrate, why?a)Nitrogen is strongly solvated in hydroxylic solvents, it will be less reactiveb)Carbon is more reactive in polar aprotic solvents, normally used for these SN2 reactionsc)Carbon atoms are more basic than nitrogend)The lone pair of electrons on C is in sp hybrid orbitalCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Only One Option Correct TypeDirection (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.Q.Cyanide anion has two atoms th at have lone pair of electrons. Either could act as nucleophile in the reaction. Yet in the vast majority of the cases, carbon acts as nucleophile and forms a bond to the substrate, why?a)Nitrogen is strongly solvated in hydroxylic solvents, it will be less reactiveb)Carbon is more reactive in polar aprotic solvents, normally used for these SN2 reactionsc)Carbon atoms are more basic than nitrogend)The lone pair of electrons on C is in sp hybrid orbitalCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Only One Option Correct TypeDirection (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.Q.Cyanide anion has two atoms th at have lone pair of electrons. Either could act as nucleophile in the reaction. Yet in the vast majority of the cases, carbon acts as nucleophile and forms a bond to the substrate, why?a)Nitrogen is strongly solvated in hydroxylic solvents, it will be less reactiveb)Carbon is more reactive in polar aprotic solvents, normally used for these SN2 reactionsc)Carbon atoms are more basic than nitrogend)The lone pair of electrons on C is in sp hybrid orbitalCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 12 tests.
|
|
Explore Courses for Class 12 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup