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The correct statement(s) for oxygen from the following
A. The ground state for the O atom is 3P1.
B. Both the atom and the diatomic molecule are paramagnetic with two unpaired electrons.
C. The most readily accessible singlet excited state for dioxygen has an empty π* orbital. is/are
Choose the correct answer from the options given below:
A. The ground state for the O atom is 3P1.
B. Both the atom and the diatomic molecule are paramagnetic with two unpaired electrons.
C. The most readily accessible singlet excited state for dioxygen has an empty π* orbital. is/are
Choose the correct answer from the options given below:
- a)A and B only
- b)B and C only
- c)A and C only
- d)B only
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
The correct statement(s) for oxygen from the followingA. The ground st...
Explanation:
Ground State of Oxygen Atom:
- The ground state for the O atom is 3P1. This means that the oxygen atom has three unpaired electrons in its outer shell, making it paramagnetic.
Paramagnetism of Oxygen:
- Both the oxygen atom and the diatomic molecule are paramagnetic with two unpaired electrons. This is due to the presence of unpaired electrons in their electronic configurations.
Singlet Excited State of Dioxygen:
- The most readily accessible singlet excited state for dioxygen has an empty π* orbital. This empty orbital allows for the promotion of electrons to higher energy levels, resulting in the formation of excited states.
Therefore, the correct statements for oxygen are B and C. Oxygen exhibits paramagnetic properties due to the presence of unpaired electrons and has a singlet excited state with an empty π* orbital.
Ground State of Oxygen Atom:
- The ground state for the O atom is 3P1. This means that the oxygen atom has three unpaired electrons in its outer shell, making it paramagnetic.
Paramagnetism of Oxygen:
- Both the oxygen atom and the diatomic molecule are paramagnetic with two unpaired electrons. This is due to the presence of unpaired electrons in their electronic configurations.
Singlet Excited State of Dioxygen:
- The most readily accessible singlet excited state for dioxygen has an empty π* orbital. This empty orbital allows for the promotion of electrons to higher energy levels, resulting in the formation of excited states.
Therefore, the correct statements for oxygen are B and C. Oxygen exhibits paramagnetic properties due to the presence of unpaired electrons and has a singlet excited state with an empty π* orbital.
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Community Answer
The correct statement(s) for oxygen from the followingA. The ground st...
- As a result of the parallel spin of unpaired electrons, molecular oxygen is paramagnetic and is attracted by a magnetic field.
- Gaseous oxygen is paramagnetic also but is moving too fast to be affected by the magnets. The reason that it is paramagnetic is because the oxygen molecule has two unpaired electrons.
- Electrons not only go around the atom in their orbitals, they also spin, which creates a magnetic field. Two electrons can occupy each s orbital, while 6 electrons can occupy each p orbital.
- Following the Exclusion Principle, two electrons will fill both the 2s and 2s* orbitals, 6 electrons will fill the 2p orbital, and that leaves 2 electrons to fill the 2p* orbital.
- These two electrons will only partially fill this orbital, and will have parallel spins. Since the rest of the electrons are all paired, the remaining two electrons in the 2p* orbital give the diatomic molecule a net total spin (it does not matter if they are 1/2 or -1/2 spins, they will both be the same). Since there is a net spin, O2 is paramagnetic.
- The oxygen atom in its quantum mechanical ground state has the electronic configuration 1s22s22p4. The ground state atom is in a 3P state, i.e., it is an electron-spin triplet (S = 1) and has orbital angular momentum quantum number L = 1
- The lowest excited state of the diatomic oxygen molecule is a singlet state. It is a gas with physical properties differing only subtly from those of the more prevalent triplet ground state of O2. In terms of its chemical reactivity, however, singlet oxygen is far more reactive toward organic compounds.
- Both singlet oxygen states have no unpaired electrons and therefore no net electron spin.
The 1Δg is however paramagnetic as shown by the observation of an electron paramagnetic resonance (EPR) spectrum.
The paramagnetism of the 1Δg state is due to a net orbital (and not spin) electronic angular momentum. In a magnetic field the degeneracy of the
Ml levels is split into two levels with z projections of angular momenta +1ħ and −1ħ around the molecular axis.
Conclusion: The correct answer is option 2.
The paramagnetism of the 1Δg state is due to a net orbital (and not spin) electronic angular momentum. In a magnetic field the degeneracy of the
Ml levels is split into two levels with z projections of angular momenta +1ħ and −1ħ around the molecular axis.
Conclusion: The correct answer is option 2.
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The correct statement(s) for oxygen from the followingA. The ground state for the O atom is 3P1.B. Both the atom and the diatomic molecule are paramagnetic with two unpaired electrons.C. The most readily accessible singlet excited state for dioxygen has an empty π* orbital. is/areChoose the correct answer from the options given below:a)A and B onlyb)B and C onlyc)A and C onlyd)B onlyCorrect answer is option 'B'. Can you explain this answer?
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The correct statement(s) for oxygen from the followingA. The ground state for the O atom is 3P1.B. Both the atom and the diatomic molecule are paramagnetic with two unpaired electrons.C. The most readily accessible singlet excited state for dioxygen has an empty π* orbital. is/areChoose the correct answer from the options given below:a)A and B onlyb)B and C onlyc)A and C onlyd)B onlyCorrect answer is option 'B'. Can you explain this answer? for UGC NET 2024 is part of UGC NET preparation. The Question and answers have been prepared according to the UGC NET exam syllabus. Information about The correct statement(s) for oxygen from the followingA. The ground state for the O atom is 3P1.B. Both the atom and the diatomic molecule are paramagnetic with two unpaired electrons.C. The most readily accessible singlet excited state for dioxygen has an empty π* orbital. is/areChoose the correct answer from the options given below:a)A and B onlyb)B and C onlyc)A and C onlyd)B onlyCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UGC NET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The correct statement(s) for oxygen from the followingA. The ground state for the O atom is 3P1.B. Both the atom and the diatomic molecule are paramagnetic with two unpaired electrons.C. The most readily accessible singlet excited state for dioxygen has an empty π* orbital. is/areChoose the correct answer from the options given below:a)A and B onlyb)B and C onlyc)A and C onlyd)B onlyCorrect answer is option 'B'. Can you explain this answer?.
The correct statement(s) for oxygen from the followingA. The ground state for the O atom is 3P1.B. Both the atom and the diatomic molecule are paramagnetic with two unpaired electrons.C. The most readily accessible singlet excited state for dioxygen has an empty π* orbital. is/areChoose the correct answer from the options given below:a)A and B onlyb)B and C onlyc)A and C onlyd)B onlyCorrect answer is option 'B'. Can you explain this answer? for UGC NET 2024 is part of UGC NET preparation. The Question and answers have been prepared according to the UGC NET exam syllabus. Information about The correct statement(s) for oxygen from the followingA. The ground state for the O atom is 3P1.B. Both the atom and the diatomic molecule are paramagnetic with two unpaired electrons.C. The most readily accessible singlet excited state for dioxygen has an empty π* orbital. is/areChoose the correct answer from the options given below:a)A and B onlyb)B and C onlyc)A and C onlyd)B onlyCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UGC NET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The correct statement(s) for oxygen from the followingA. The ground state for the O atom is 3P1.B. Both the atom and the diatomic molecule are paramagnetic with two unpaired electrons.C. The most readily accessible singlet excited state for dioxygen has an empty π* orbital. is/areChoose the correct answer from the options given below:a)A and B onlyb)B and C onlyc)A and C onlyd)B onlyCorrect answer is option 'B'. Can you explain this answer?.
Solutions for The correct statement(s) for oxygen from the followingA. The ground state for the O atom is 3P1.B. Both the atom and the diatomic molecule are paramagnetic with two unpaired electrons.C. The most readily accessible singlet excited state for dioxygen has an empty π* orbital. is/areChoose the correct answer from the options given below:a)A and B onlyb)B and C onlyc)A and C onlyd)B onlyCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for UGC NET.
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ample number of questions to practice The correct statement(s) for oxygen from the followingA. The ground state for the O atom is 3P1.B. Both the atom and the diatomic molecule are paramagnetic with two unpaired electrons.C. The most readily accessible singlet excited state for dioxygen has an empty π* orbital. is/areChoose the correct answer from the options given below:a)A and B onlyb)B and C onlyc)A and C onlyd)B onlyCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice UGC NET tests.
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