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In which of the following changes there is a transfer of 5e–? A) MnO4^– → Mn^2 B) CrO4^2– → Cr^3 C) MnO4^2– → MnO2 D) Cr2O7^2– → 2Cr^3 The answer is 'A'. Please explain.?
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In which of the following changes there is a transfer of 5e–? A) MnO4^...
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In which of the following changes there is a transfer of 5e–? A) MnO4^...
Explanation:
In a redox reaction, electrons are transferred from one species to another. The species that loses electrons is said to be oxidized, while the species that gains electrons is said to be reduced. The electrons that are transferred are counted as part of the oxidation number of the species.
In the given options, we need to identify the change that involves a transfer of 5 electrons.
A) MnO4^- → Mn^2+
In this reaction, the Mn atom in MnO4^- changes its oxidation number from +7 to +2. This means that it has gained 5 electrons. Therefore, this reaction involves a transfer of 5 electrons.
B) CrO4^2- → Cr^3+
In this reaction, the Cr atom in CrO4^2- changes its oxidation number from +6 to +3. This means that it has gained 3 electrons. Therefore, this reaction does not involve a transfer of 5 electrons.
C) MnO4^2- → MnO2
In this reaction, the Mn atom in MnO4^2- changes its oxidation number from +7 to +4. This means that it has gained 3 electrons. Therefore, this reaction does not involve a transfer of 5 electrons.
D) Cr2O7^2- → 2Cr^3+
In this reaction, the two Cr atoms in Cr2O7^2- change their oxidation numbers from +6 to +3. This means that each Cr atom has gained 3 electrons. Therefore, this reaction does not involve a transfer of 5 electrons.
Therefore, the correct answer is option A) MnO4^- → Mn^2+.
In a redox reaction, electrons are transferred from one species to another. The species that loses electrons is said to be oxidized, while the species that gains electrons is said to be reduced. The electrons that are transferred are counted as part of the oxidation number of the species.
In the given options, we need to identify the change that involves a transfer of 5 electrons.
A) MnO4^- → Mn^2+
In this reaction, the Mn atom in MnO4^- changes its oxidation number from +7 to +2. This means that it has gained 5 electrons. Therefore, this reaction involves a transfer of 5 electrons.
B) CrO4^2- → Cr^3+
In this reaction, the Cr atom in CrO4^2- changes its oxidation number from +6 to +3. This means that it has gained 3 electrons. Therefore, this reaction does not involve a transfer of 5 electrons.
C) MnO4^2- → MnO2
In this reaction, the Mn atom in MnO4^2- changes its oxidation number from +7 to +4. This means that it has gained 3 electrons. Therefore, this reaction does not involve a transfer of 5 electrons.
D) Cr2O7^2- → 2Cr^3+
In this reaction, the two Cr atoms in Cr2O7^2- change their oxidation numbers from +6 to +3. This means that each Cr atom has gained 3 electrons. Therefore, this reaction does not involve a transfer of 5 electrons.
Therefore, the correct answer is option A) MnO4^- → Mn^2+.
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In which of the following changes there is a transfer of 5e–? A) MnO4^– → Mn^2 B) CrO4^2– → Cr^3 C) MnO4^2– → MnO2 D) Cr2O7^2– → 2Cr^3 The answer is 'A'. Please explain.?
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In which of the following changes there is a transfer of 5e–? A) MnO4^– → Mn^2 B) CrO4^2– → Cr^3 C) MnO4^2– → MnO2 D) Cr2O7^2– → 2Cr^3 The answer is 'A'. Please explain.? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about In which of the following changes there is a transfer of 5e–? A) MnO4^– → Mn^2 B) CrO4^2– → Cr^3 C) MnO4^2– → MnO2 D) Cr2O7^2– → 2Cr^3 The answer is 'A'. Please explain.? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In which of the following changes there is a transfer of 5e–? A) MnO4^– → Mn^2 B) CrO4^2– → Cr^3 C) MnO4^2– → MnO2 D) Cr2O7^2– → 2Cr^3 The answer is 'A'. Please explain.?.
In which of the following changes there is a transfer of 5e–? A) MnO4^– → Mn^2 B) CrO4^2– → Cr^3 C) MnO4^2– → MnO2 D) Cr2O7^2– → 2Cr^3 The answer is 'A'. Please explain.? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about In which of the following changes there is a transfer of 5e–? A) MnO4^– → Mn^2 B) CrO4^2– → Cr^3 C) MnO4^2– → MnO2 D) Cr2O7^2– → 2Cr^3 The answer is 'A'. Please explain.? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In which of the following changes there is a transfer of 5e–? A) MnO4^– → Mn^2 B) CrO4^2– → Cr^3 C) MnO4^2– → MnO2 D) Cr2O7^2– → 2Cr^3 The answer is 'A'. Please explain.?.
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In which of the following changes there is a transfer of 5e–? A) MnO4^– → Mn^2 B) CrO4^2– → Cr^3 C) MnO4^2– → MnO2 D) Cr2O7^2– → 2Cr^3 The answer is 'A'. Please explain.?, a detailed solution for In which of the following changes there is a transfer of 5e–? A) MnO4^– → Mn^2 B) CrO4^2– → Cr^3 C) MnO4^2– → MnO2 D) Cr2O7^2– → 2Cr^3 The answer is 'A'. Please explain.? has been provided alongside types of In which of the following changes there is a transfer of 5e–? A) MnO4^– → Mn^2 B) CrO4^2– → Cr^3 C) MnO4^2– → MnO2 D) Cr2O7^2– → 2Cr^3 The answer is 'A'. Please explain.? theory, EduRev gives you an
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