Class 12 Exam  >  Class 12 Questions  >  Passage IIn a SN2 reaction, solvent plays a v... Start Learning for Free
Passage I
In a SN2 reaction, solvent plays a very important role. Hydroxylic solvents like water, alcohols, carboxylic acids etc., solvate nucleophile, decreases its reactivity in the reaction.
Size of donor atom of nucleophile also affect nucleophilicity. A larger donor atom is more easily polarised and less solvated, hence a stronger nucleophile. Therefore, in a given group of periodic table, nucleophilicity increases down the group. However solvation effect is more predominant than polarisability.
Q. 
In dimethyl sulphoxide (DMSO) solvent, the order of nucleophilicity of haiides ion is
  • a)
    I- < Br- < Cl- < F-
  • b)
    F- < Cl- < Br- < I-
  • c)
    I- = Br- = Cl- = F-
  • d)
    F= Cl- < Br- < I-
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Passage IIn a SN2 reaction, solvent plays a very important role. Hydro...
In polar aprotic solvent, basicity parallels nucleophilicity.
View all questions of this test
Most Upvoted Answer
Passage IIn a SN2 reaction, solvent plays a very important role. Hydro...
- **Explanation of the answer:**
**Solvation effect in DMSO:**
- DMSO is a polar aprotic solvent which does not solvate nucleophiles strongly.
- In DMSO, the order of nucleophilicity is inversely related to the size of the halides.
**Order of nucleophilicity in DMSO:**
- I- > Br- > Cl- > F-
- The larger iodide ion is less solvated in DMSO compared to smaller halides, making it the strongest nucleophile in this solvent.
**Comparison of nucleophilicity:**
- Iodide ion (I-) has the highest nucleophilicity in DMSO due to its larger size and weaker solvation.
- Bromide ion (Br-) is next in nucleophilicity, followed by chloride ion (Cl-) and fluoride ion (F-) due to their smaller sizes and stronger solvation in DMSO.
**Conclusion:**
- Therefore, in dimethyl sulphoxide (DMSO) solvent, the order of nucleophilicity of halides ions is I- > Br- > Cl- > F-.
Explore Courses for Class 12 exam

Similar Class 12 Doubts

Passage IIn a SN2 reaction, solvent plays a very important role. Hydroxylic solvents like water, alcohols, carboxylic acids etc., solvate nucleophile, decreases its reactivity in the reaction.Size of donor atom of nucleophile also affect nucleophilicity. A larger donor atom is more easily polarised and less solvated, hence a stronger nucleophile. Therefore, in a given group of periodic table, nucleophilicity increases down the group. However solvation effect is more predominant than polarisability.Q.In dimethyl sulphoxide (DMSO) solvent, the order of nucleophilicity of haiides ion isa)I-<Br-<Cl-<F-b)F- <Cl-< Br-< I-c)I- = Br- = Cl-= F-d)F-= Cl-< Br-< I-Correct answer is option 'A'. Can you explain this answer?
Question Description
Passage IIn a SN2 reaction, solvent plays a very important role. Hydroxylic solvents like water, alcohols, carboxylic acids etc., solvate nucleophile, decreases its reactivity in the reaction.Size of donor atom of nucleophile also affect nucleophilicity. A larger donor atom is more easily polarised and less solvated, hence a stronger nucleophile. Therefore, in a given group of periodic table, nucleophilicity increases down the group. However solvation effect is more predominant than polarisability.Q.In dimethyl sulphoxide (DMSO) solvent, the order of nucleophilicity of haiides ion isa)I-<Br-<Cl-<F-b)F- <Cl-< Br-< I-c)I- = Br- = Cl-= F-d)F-= Cl-< Br-< I-Correct answer is option 'A'. 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 Passage IIn a SN2 reaction, solvent plays a very important role. Hydroxylic solvents like water, alcohols, carboxylic acids etc., solvate nucleophile, decreases its reactivity in the reaction.Size of donor atom of nucleophile also affect nucleophilicity. A larger donor atom is more easily polarised and less solvated, hence a stronger nucleophile. Therefore, in a given group of periodic table, nucleophilicity increases down the group. However solvation effect is more predominant than polarisability.Q.In dimethyl sulphoxide (DMSO) solvent, the order of nucleophilicity of haiides ion isa)I-<Br-<Cl-<F-b)F- <Cl-< Br-< I-c)I- = Br- = Cl-= F-d)F-= Cl-< Br-< I-Correct answer is option 'A'. 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 Passage IIn a SN2 reaction, solvent plays a very important role. Hydroxylic solvents like water, alcohols, carboxylic acids etc., solvate nucleophile, decreases its reactivity in the reaction.Size of donor atom of nucleophile also affect nucleophilicity. A larger donor atom is more easily polarised and less solvated, hence a stronger nucleophile. Therefore, in a given group of periodic table, nucleophilicity increases down the group. However solvation effect is more predominant than polarisability.Q.In dimethyl sulphoxide (DMSO) solvent, the order of nucleophilicity of haiides ion isa)I-<Br-<Cl-<F-b)F- <Cl-< Br-< I-c)I- = Br- = Cl-= F-d)F-= Cl-< Br-< I-Correct answer is option 'A'. Can you explain this answer?.
Solutions for Passage IIn a SN2 reaction, solvent plays a very important role. Hydroxylic solvents like water, alcohols, carboxylic acids etc., solvate nucleophile, decreases its reactivity in the reaction.Size of donor atom of nucleophile also affect nucleophilicity. A larger donor atom is more easily polarised and less solvated, hence a stronger nucleophile. Therefore, in a given group of periodic table, nucleophilicity increases down the group. However solvation effect is more predominant than polarisability.Q.In dimethyl sulphoxide (DMSO) solvent, the order of nucleophilicity of haiides ion isa)I-<Br-<Cl-<F-b)F- <Cl-< Br-< I-c)I- = Br- = Cl-= F-d)F-= Cl-< Br-< I-Correct answer is option 'A'. 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 Passage IIn a SN2 reaction, solvent plays a very important role. Hydroxylic solvents like water, alcohols, carboxylic acids etc., solvate nucleophile, decreases its reactivity in the reaction.Size of donor atom of nucleophile also affect nucleophilicity. A larger donor atom is more easily polarised and less solvated, hence a stronger nucleophile. Therefore, in a given group of periodic table, nucleophilicity increases down the group. However solvation effect is more predominant than polarisability.Q.In dimethyl sulphoxide (DMSO) solvent, the order of nucleophilicity of haiides ion isa)I-<Br-<Cl-<F-b)F- <Cl-< Br-< I-c)I- = Br- = Cl-= F-d)F-= Cl-< Br-< I-Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Passage IIn a SN2 reaction, solvent plays a very important role. Hydroxylic solvents like water, alcohols, carboxylic acids etc., solvate nucleophile, decreases its reactivity in the reaction.Size of donor atom of nucleophile also affect nucleophilicity. A larger donor atom is more easily polarised and less solvated, hence a stronger nucleophile. Therefore, in a given group of periodic table, nucleophilicity increases down the group. However solvation effect is more predominant than polarisability.Q.In dimethyl sulphoxide (DMSO) solvent, the order of nucleophilicity of haiides ion isa)I-<Br-<Cl-<F-b)F- <Cl-< Br-< I-c)I- = Br- = Cl-= F-d)F-= Cl-< Br-< I-Correct answer is option 'A'. Can you explain this answer?, a detailed solution for Passage IIn a SN2 reaction, solvent plays a very important role. Hydroxylic solvents like water, alcohols, carboxylic acids etc., solvate nucleophile, decreases its reactivity in the reaction.Size of donor atom of nucleophile also affect nucleophilicity. A larger donor atom is more easily polarised and less solvated, hence a stronger nucleophile. Therefore, in a given group of periodic table, nucleophilicity increases down the group. However solvation effect is more predominant than polarisability.Q.In dimethyl sulphoxide (DMSO) solvent, the order of nucleophilicity of haiides ion isa)I-<Br-<Cl-<F-b)F- <Cl-< Br-< I-c)I- = Br- = Cl-= F-d)F-= Cl-< Br-< I-Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of Passage IIn a SN2 reaction, solvent plays a very important role. Hydroxylic solvents like water, alcohols, carboxylic acids etc., solvate nucleophile, decreases its reactivity in the reaction.Size of donor atom of nucleophile also affect nucleophilicity. A larger donor atom is more easily polarised and less solvated, hence a stronger nucleophile. Therefore, in a given group of periodic table, nucleophilicity increases down the group. However solvation effect is more predominant than polarisability.Q.In dimethyl sulphoxide (DMSO) solvent, the order of nucleophilicity of haiides ion isa)I-<Br-<Cl-<F-b)F- <Cl-< Br-< I-c)I- = Br- = Cl-= F-d)F-= Cl-< Br-< I-Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Passage IIn a SN2 reaction, solvent plays a very important role. Hydroxylic solvents like water, alcohols, carboxylic acids etc., solvate nucleophile, decreases its reactivity in the reaction.Size of donor atom of nucleophile also affect nucleophilicity. A larger donor atom is more easily polarised and less solvated, hence a stronger nucleophile. Therefore, in a given group of periodic table, nucleophilicity increases down the group. However solvation effect is more predominant than polarisability.Q.In dimethyl sulphoxide (DMSO) solvent, the order of nucleophilicity of haiides ion isa)I-<Br-<Cl-<F-b)F- <Cl-< Br-< I-c)I- = Br- = Cl-= F-d)F-= Cl-< Br-< I-Correct answer is option 'A'. 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.
10M+ students study on EduRev