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Which of the following is not true about nucleophile?
- a)donates an electron pair to an electrophile to form a chemical bond
- b)all molecules or ions with a free pair of electrons or at least one pi bond can act as nucleophiles
- c)nucleophile are Lewis acids by definition
- d)a nucleophile becomes attracted to a full or partial positive charge
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Which of the following is not true about nucleophile?a)donates an elec...
Explanation:
The correct answer is option 'C', which states that nucleophiles are Lewis acids by definition. This statement is not true.
Nucleophile:
A nucleophile is a chemical species that donates an electron pair to an electrophile to form a chemical bond. Nucleophiles are typically molecules or ions with a free pair of electrons or at least one pi bond. They are attracted to a full or partial positive charge.
Definition of Lewis Acids and Bases:
According to Lewis acid-base theory, a Lewis acid is a chemical species that can accept a pair of electrons to form a new covalent bond. A Lewis base, on the other hand, is a chemical species that can donate a pair of electrons to form a new covalent bond.
Difference between Nucleophiles and Lewis Acids:
- Nucleophiles donate an electron pair to an electrophile to form a chemical bond, whereas Lewis acids accept a pair of electrons to form a new covalent bond.
- Nucleophiles are species with a free pair of electrons or at least one pi bond, while Lewis acids are species that can accept a pair of electrons.
- Nucleophiles are attracted to a full or partial positive charge, while Lewis acids are not specifically attracted to positive charges.
Conclusion:
The statement that nucleophiles are Lewis acids by definition is incorrect. Nucleophiles and Lewis acids are different concepts in chemistry. Nucleophiles donate electron pairs, while Lewis acids accept electron pairs.
The correct answer is option 'C', which states that nucleophiles are Lewis acids by definition. This statement is not true.
Nucleophile:
A nucleophile is a chemical species that donates an electron pair to an electrophile to form a chemical bond. Nucleophiles are typically molecules or ions with a free pair of electrons or at least one pi bond. They are attracted to a full or partial positive charge.
Definition of Lewis Acids and Bases:
According to Lewis acid-base theory, a Lewis acid is a chemical species that can accept a pair of electrons to form a new covalent bond. A Lewis base, on the other hand, is a chemical species that can donate a pair of electrons to form a new covalent bond.
Difference between Nucleophiles and Lewis Acids:
- Nucleophiles donate an electron pair to an electrophile to form a chemical bond, whereas Lewis acids accept a pair of electrons to form a new covalent bond.
- Nucleophiles are species with a free pair of electrons or at least one pi bond, while Lewis acids are species that can accept a pair of electrons.
- Nucleophiles are attracted to a full or partial positive charge, while Lewis acids are not specifically attracted to positive charges.
Conclusion:
The statement that nucleophiles are Lewis acids by definition is incorrect. Nucleophiles and Lewis acids are different concepts in chemistry. Nucleophiles donate electron pairs, while Lewis acids accept electron pairs.
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Community Answer
Which of the following is not true about nucleophile?a)donates an elec...
Because nucleophiles donate electrons, they are by definition Lewis bases.
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Which of the following is not true about nucleophile?a)donates an electron pair to an electrophile to form a chemical bondb)all molecules or ions with a free pair of electrons or at least one pi bond can act as nucleophilesc)nucleophile are Lewis acids by definitiond)a nucleophile becomes attracted to a full or partial positive chargeCorrect answer is option 'C'. Can you explain this answer?
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Which of the following is not true about nucleophile?a)donates an electron pair to an electrophile to form a chemical bondb)all molecules or ions with a free pair of electrons or at least one pi bond can act as nucleophilesc)nucleophile are Lewis acids by definitiond)a nucleophile becomes attracted to a full or partial positive chargeCorrect answer is option 'C'. Can you explain this answer? for Chemistry 2024 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about Which of the following is not true about nucleophile?a)donates an electron pair to an electrophile to form a chemical bondb)all molecules or ions with a free pair of electrons or at least one pi bond can act as nucleophilesc)nucleophile are Lewis acids by definitiond)a nucleophile becomes attracted to a full or partial positive chargeCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is not true about nucleophile?a)donates an electron pair to an electrophile to form a chemical bondb)all molecules or ions with a free pair of electrons or at least one pi bond can act as nucleophilesc)nucleophile are Lewis acids by definitiond)a nucleophile becomes attracted to a full or partial positive chargeCorrect answer is option 'C'. Can you explain this answer?.
Which of the following is not true about nucleophile?a)donates an electron pair to an electrophile to form a chemical bondb)all molecules or ions with a free pair of electrons or at least one pi bond can act as nucleophilesc)nucleophile are Lewis acids by definitiond)a nucleophile becomes attracted to a full or partial positive chargeCorrect answer is option 'C'. Can you explain this answer? for Chemistry 2024 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about Which of the following is not true about nucleophile?a)donates an electron pair to an electrophile to form a chemical bondb)all molecules or ions with a free pair of electrons or at least one pi bond can act as nucleophilesc)nucleophile are Lewis acids by definitiond)a nucleophile becomes attracted to a full or partial positive chargeCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is not true about nucleophile?a)donates an electron pair to an electrophile to form a chemical bondb)all molecules or ions with a free pair of electrons or at least one pi bond can act as nucleophilesc)nucleophile are Lewis acids by definitiond)a nucleophile becomes attracted to a full or partial positive chargeCorrect answer is option 'C'. Can you explain this answer?.
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