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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. 
Which of the following describe correctly the role of H2O a s solvent in a SN2 reaction?
  • a)
    It stabilises nucleophile but not to transition state
  • b)
    It stabilises transition state but not nucleophile
  • c)
    It stabilises both transition state and nucleophile but to a greater extent to nucleophile
  • d)
    It stabilises both transition state and nucleophile but to a greater extent to transition state
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Passage IIn a SN2 reaction, solvent plays a very important role. Hydro...
Hydroxylic solvents like H2O , stabilises both nucleophile and transition state, but to a greater extent to nucleophile. As a result, activation energy increases and rate of reaction decreases.
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Passage IIn a SN2 reaction, solvent plays a very important role. Hydro...
Role of H2O as a solvent in a SN2 reaction:
Understanding the role of solvent in a SN2 reaction is crucial in determining the reactivity of the nucleophile and the transition state.

Stabilizing both transition state and nucleophile:
- H2O solvates the nucleophile, decreasing its reactivity in the reaction.
- It also stabilizes the transition state by solvating the leaving group and the transition state itself.
- The solvation effect of H2O is more predominant than the polarizability of the nucleophile.

Greater extent of stabilization towards the nucleophile:
- Although H2O stabilizes both the transition state and the nucleophile, it does so to a greater extent towards the nucleophile.
- This leads to a decrease in the reactivity of the nucleophile in the reaction.
Therefore, in a SN2 reaction, H2O plays a crucial role in stabilizing both the nucleophile and the transition state, with a greater extent of stabilization towards the nucleophile.
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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.Which of the following describe correctly the role of H2O a s solvent in a SN2 reaction?a)It stabilises nucleophile but not to transition stateb)It stabilises transition state but not nucleophilec)It stabilises both transition state and nucleophile but to a greater extent to nucleophiled)It stabilises both transition state and nucleophile but to a greater extent to transition stateCorrect answer is option 'C'. Can you explain this answer?
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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.Which of the following describe correctly the role of H2O a s solvent in a SN2 reaction?a)It stabilises nucleophile but not to transition stateb)It stabilises transition state but not nucleophilec)It stabilises both transition state and nucleophile but to a greater extent to nucleophiled)It stabilises both transition state and nucleophile but to a greater extent to transition stateCorrect 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 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.Which of the following describe correctly the role of H2O a s solvent in a SN2 reaction?a)It stabilises nucleophile but not to transition stateb)It stabilises transition state but not nucleophilec)It stabilises both transition state and nucleophile but to a greater extent to nucleophiled)It stabilises both transition state and nucleophile but to a greater extent to transition stateCorrect 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 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.Which of the following describe correctly the role of H2O a s solvent in a SN2 reaction?a)It stabilises nucleophile but not to transition stateb)It stabilises transition state but not nucleophilec)It stabilises both transition state and nucleophile but to a greater extent to nucleophiled)It stabilises both transition state and nucleophile but to a greater extent to transition stateCorrect answer is option 'C'. 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.Which of the following describe correctly the role of H2O a s solvent in a SN2 reaction?a)It stabilises nucleophile but not to transition stateb)It stabilises transition state but not nucleophilec)It stabilises both transition state and nucleophile but to a greater extent to nucleophiled)It stabilises both transition state and nucleophile but to a greater extent to transition stateCorrect 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 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.Which of the following describe correctly the role of H2O a s solvent in a SN2 reaction?a)It stabilises nucleophile but not to transition stateb)It stabilises transition state but not nucleophilec)It stabilises both transition state and nucleophile but to a greater extent to nucleophiled)It stabilises both transition state and nucleophile but to a greater extent to transition stateCorrect answer is option 'C'. 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.Which of the following describe correctly the role of H2O a s solvent in a SN2 reaction?a)It stabilises nucleophile but not to transition stateb)It stabilises transition state but not nucleophilec)It stabilises both transition state and nucleophile but to a greater extent to nucleophiled)It stabilises both transition state and nucleophile but to a greater extent to transition stateCorrect answer is option 'C'. 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.Which of the following describe correctly the role of H2O a s solvent in a SN2 reaction?a)It stabilises nucleophile but not to transition stateb)It stabilises transition state but not nucleophilec)It stabilises both transition state and nucleophile but to a greater extent to nucleophiled)It stabilises both transition state and nucleophile but to a greater extent to transition stateCorrect answer is option 'C'. 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.Which of the following describe correctly the role of H2O a s solvent in a SN2 reaction?a)It stabilises nucleophile but not to transition stateb)It stabilises transition state but not nucleophilec)It stabilises both transition state and nucleophile but to a greater extent to nucleophiled)It stabilises both transition state and nucleophile but to a greater extent to transition stateCorrect answer is option 'C'. 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.Which of the following describe correctly the role of H2O a s solvent in a SN2 reaction?a)It stabilises nucleophile but not to transition stateb)It stabilises transition state but not nucleophilec)It stabilises both transition state and nucleophile but to a greater extent to nucleophiled)It stabilises both transition state and nucleophile but to a greater extent to transition stateCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 12 tests.
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