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If there are five electron pairs in outer shell of an atom, then structure and bond angle as predicted by Sidgwick-Powell theory is
- a)octahedron; 90°
- b)trigonal bipyramidal; 120° and 90°
- c)pentagonal bipyramidal; 72° and 90°
- d)tetrahedron; 109.5°
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
If there are five electron pairs in outer shell of an atom, then struc...
There are five bonding pairs or electron pairs. Thus, sp3d-hybridisation. Trigonal bipyramidal structure.
Three bonding pairs are at 120° with one each other.
Two bonding pairs are at 90° with the plane in which first three bonding pairs exist.
Three bonding pairs are at 120° with one each other.
Two bonding pairs are at 90° with the plane in which first three bonding pairs exist.
Most Upvoted Answer
If there are five electron pairs in outer shell of an atom, then struc...
Explanation:
According to Sidgwick-Powell theory, the structure and bond angles of a molecule can be predicted based on the number of electron pairs in the outer shell of the central atom. In this case, there are five electron pairs in the outer shell, which means we need to determine the geometry that best accommodates these electron pairs.
Step 1: Determine the electronic geometry
The electronic geometry is determined by the arrangement of electron pairs around the central atom. In this case, we have five electron pairs, which corresponds to the trigonal bipyramidal geometry.
Step 2: Determine the molecular geometry
The molecular geometry is determined by the arrangement of atoms around the central atom, taking into account the presence of lone pairs. In this case, we need to consider the presence of any lone pairs on the central atom.
- If there are no lone pairs, the molecular geometry is the same as the electronic geometry.
- If there are one or more lone pairs, the molecular geometry may be different from the electronic geometry.
Since the question does not mention the presence of any lone pairs, we can assume that there are no lone pairs on the central atom. Therefore, the molecular geometry is also trigonal bipyramidal.
Step 3: Determine the bond angles
In a trigonal bipyramidal geometry, there are two types of bond angles:
- The angle between the equatorial positions (the three positions in the plane of the triangle) is 120 degrees.
- The angle between the axial positions (the two positions above and below the plane of the triangle) and the equatorial positions is 90 degrees.
Therefore, the correct answer is option B: trigonal bipyramidal with bond angles of 120 degrees and 90 degrees.
According to Sidgwick-Powell theory, the structure and bond angles of a molecule can be predicted based on the number of electron pairs in the outer shell of the central atom. In this case, there are five electron pairs in the outer shell, which means we need to determine the geometry that best accommodates these electron pairs.
Step 1: Determine the electronic geometry
The electronic geometry is determined by the arrangement of electron pairs around the central atom. In this case, we have five electron pairs, which corresponds to the trigonal bipyramidal geometry.
Step 2: Determine the molecular geometry
The molecular geometry is determined by the arrangement of atoms around the central atom, taking into account the presence of lone pairs. In this case, we need to consider the presence of any lone pairs on the central atom.
- If there are no lone pairs, the molecular geometry is the same as the electronic geometry.
- If there are one or more lone pairs, the molecular geometry may be different from the electronic geometry.
Since the question does not mention the presence of any lone pairs, we can assume that there are no lone pairs on the central atom. Therefore, the molecular geometry is also trigonal bipyramidal.
Step 3: Determine the bond angles
In a trigonal bipyramidal geometry, there are two types of bond angles:
- The angle between the equatorial positions (the three positions in the plane of the triangle) is 120 degrees.
- The angle between the axial positions (the two positions above and below the plane of the triangle) and the equatorial positions is 90 degrees.
Therefore, the correct answer is option B: trigonal bipyramidal with bond angles of 120 degrees and 90 degrees.
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If there are five electron pairs in outer shell of an atom, then structure and bond angle as predicted by Sidgwick-Powell theory isa)octahedron; 90b)trigonal bipyramidal; 120 and 90c)pentagonal bipyramidal; 72 and 90d)tetrahedron; 109.5Correct answer is option 'B'. Can you explain this answer?
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If there are five electron pairs in outer shell of an atom, then structure and bond angle as predicted by Sidgwick-Powell theory isa)octahedron; 90b)trigonal bipyramidal; 120 and 90c)pentagonal bipyramidal; 72 and 90d)tetrahedron; 109.5Correct answer is option 'B'. 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 If there are five electron pairs in outer shell of an atom, then structure and bond angle as predicted by Sidgwick-Powell theory isa)octahedron; 90b)trigonal bipyramidal; 120 and 90c)pentagonal bipyramidal; 72 and 90d)tetrahedron; 109.5Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If there are five electron pairs in outer shell of an atom, then structure and bond angle as predicted by Sidgwick-Powell theory isa)octahedron; 90b)trigonal bipyramidal; 120 and 90c)pentagonal bipyramidal; 72 and 90d)tetrahedron; 109.5Correct answer is option 'B'. Can you explain this answer?.
If there are five electron pairs in outer shell of an atom, then structure and bond angle as predicted by Sidgwick-Powell theory isa)octahedron; 90b)trigonal bipyramidal; 120 and 90c)pentagonal bipyramidal; 72 and 90d)tetrahedron; 109.5Correct answer is option 'B'. 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 If there are five electron pairs in outer shell of an atom, then structure and bond angle as predicted by Sidgwick-Powell theory isa)octahedron; 90b)trigonal bipyramidal; 120 and 90c)pentagonal bipyramidal; 72 and 90d)tetrahedron; 109.5Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If there are five electron pairs in outer shell of an atom, then structure and bond angle as predicted by Sidgwick-Powell theory isa)octahedron; 90b)trigonal bipyramidal; 120 and 90c)pentagonal bipyramidal; 72 and 90d)tetrahedron; 109.5Correct answer is option 'B'. Can you explain this answer?.
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