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The colour of the X2 molecules of group 17 elements changes gradually from yellow to violet down the group. This is due to -
- a)the physical state of X2 at room temperature changes from gas to solid down the group
- b)decrease in HOMO-LUMO gap down the group
- c)decrease in π*-σ* down the group
- d)decrease in ionization energy down the group
Correct answer is option 'B,C'. Can you explain this answer?
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Verified Answer
The colour of the X2 molecules of group 17 elements changes gradually ...
Halogens are coloured due to HOMO-LUMO transition of electrons.
On moving down the group HOMO-LUMO energy gap decreases so transition of electrons become easier
therefore colour intensify.
On moving down the group HOMO-LUMO energy gap decreases so transition of electrons become easier
therefore colour intensify.Most Upvoted Answer
The colour of the X2 molecules of group 17 elements changes gradually ...
Bond dissociation energy down the groupd)increase in electronegativity down the group
b) decrease in HOMO-LUMO gap down the group
The colour of the X2 molecules of group 17 elements is due to their electronic transitions from the highest occupied molecular orbital (HOMO) to the lowest unoccupied molecular orbital (LUMO). As we move down the group, the atomic size increases, resulting in a decrease in the energy gap between the HOMO and LUMO orbitals. This decrease in the HOMO-LUMO gap causes X2 molecules to absorb longer-wavelength light, which corresponds to a shift in colour from yellow to violet. Therefore, option (b) is the correct answer.
b) decrease in HOMO-LUMO gap down the group
The colour of the X2 molecules of group 17 elements is due to their electronic transitions from the highest occupied molecular orbital (HOMO) to the lowest unoccupied molecular orbital (LUMO). As we move down the group, the atomic size increases, resulting in a decrease in the energy gap between the HOMO and LUMO orbitals. This decrease in the HOMO-LUMO gap causes X2 molecules to absorb longer-wavelength light, which corresponds to a shift in colour from yellow to violet. Therefore, option (b) is the correct answer.
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The colour of the X2 molecules of group 17 elements changes gradually from yellow to violet down the group. This is due to -a)the physical state of X2 at room temperature changes from gas to solid down the groupb)decrease in HOMO-LUMO gap down the groupc)decrease in π*-σ* down the groupd)decrease in ionization energy down the groupCorrect answer is option 'B,C'. Can you explain this answer?
Question Description
The colour of the X2 molecules of group 17 elements changes gradually from yellow to violet down the group. This is due to -a)the physical state of X2 at room temperature changes from gas to solid down the groupb)decrease in HOMO-LUMO gap down the groupc)decrease in π*-σ* down the groupd)decrease in ionization energy down the groupCorrect answer is option 'B,C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about The colour of the X2 molecules of group 17 elements changes gradually from yellow to violet down the group. This is due to -a)the physical state of X2 at room temperature changes from gas to solid down the groupb)decrease in HOMO-LUMO gap down the groupc)decrease in π*-σ* down the groupd)decrease in ionization energy down the groupCorrect answer is option 'B,C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The colour of the X2 molecules of group 17 elements changes gradually from yellow to violet down the group. This is due to -a)the physical state of X2 at room temperature changes from gas to solid down the groupb)decrease in HOMO-LUMO gap down the groupc)decrease in π*-σ* down the groupd)decrease in ionization energy down the groupCorrect answer is option 'B,C'. Can you explain this answer?.
The colour of the X2 molecules of group 17 elements changes gradually from yellow to violet down the group. This is due to -a)the physical state of X2 at room temperature changes from gas to solid down the groupb)decrease in HOMO-LUMO gap down the groupc)decrease in π*-σ* down the groupd)decrease in ionization energy down the groupCorrect answer is option 'B,C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about The colour of the X2 molecules of group 17 elements changes gradually from yellow to violet down the group. This is due to -a)the physical state of X2 at room temperature changes from gas to solid down the groupb)decrease in HOMO-LUMO gap down the groupc)decrease in π*-σ* down the groupd)decrease in ionization energy down the groupCorrect answer is option 'B,C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The colour of the X2 molecules of group 17 elements changes gradually from yellow to violet down the group. This is due to -a)the physical state of X2 at room temperature changes from gas to solid down the groupb)decrease in HOMO-LUMO gap down the groupc)decrease in π*-σ* down the groupd)decrease in ionization energy down the groupCorrect answer is option 'B,C'. Can you explain this answer?.
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The colour of the X2 molecules of group 17 elements changes gradually from yellow to violet down the group. This is due to -a)the physical state of X2 at room temperature changes from gas to solid down the groupb)decrease in HOMO-LUMO gap down the groupc)decrease in π*-σ* down the groupd)decrease in ionization energy down the groupCorrect answer is option 'B,C'. Can you explain this answer?, a detailed solution for The colour of the X2 molecules of group 17 elements changes gradually from yellow to violet down the group. This is due to -a)the physical state of X2 at room temperature changes from gas to solid down the groupb)decrease in HOMO-LUMO gap down the groupc)decrease in π*-σ* down the groupd)decrease in ionization energy down the groupCorrect answer is option 'B,C'. Can you explain this answer? has been provided alongside types of The colour of the X2 molecules of group 17 elements changes gradually from yellow to violet down the group. This is due to -a)the physical state of X2 at room temperature changes from gas to solid down the groupb)decrease in HOMO-LUMO gap down the groupc)decrease in π*-σ* down the groupd)decrease in ionization energy down the groupCorrect answer is option 'B,C'. Can you explain this answer? theory, EduRev gives you an
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