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In which of the following pairs of molecules/ ions, the central atoms have sp2 hybridization? [2010]
- a)NO2- and NH3
- b)BF3 and NO2-
- c)NH2- and H2O
- d)BF3 and NH2-
Correct answer is option 'B'. Can you explain this answer?
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In which of the following pairs of molecules/ ions, the central atoms ...
3 means sp2
3 means sp2Most Upvoted Answer
In which of the following pairs of molecules/ ions, the central atoms ...
Explanation:
Hybridization is the process of combining atomic orbitals to form hybrid orbitals that have different properties than the original orbitals. The central atom in a molecule/ion is the one that forms the most number of bonds. The hybridization of the central atom determines the shape and geometry of the molecule/ion.
The four types of hybridization are: sp, sp2, sp3, and sp3d. In sp hybridization, one s and one p orbital combine to form two hybrid orbitals. In sp2 hybridization, one s and two p orbitals combine to form three hybrid orbitals. In sp3 hybridization, one s and three p orbitals combine to form four hybrid orbitals. In sp3d hybridization, one s, three p, and one d orbital combine to form five hybrid orbitals.
To determine the hybridization of the central atom, we need to count the number of sigma bonds and lone pairs of electrons around it. The hybridization is then determined as follows:
- For 2 sigma bonds and 0 lone pairs, the hybridization is sp.
- For 3 sigma bonds and 0 lone pairs, the hybridization is sp2.
- For 4 sigma bonds and 0 lone pairs, the hybridization is sp3.
- For 5 sigma bonds and 0 lone pairs, the hybridization is sp3d.
Now, let's look at the given options:
a) NO2- and NH3:
- In NO2-, the central atom is N and it has 3 sigma bonds and 1 lone pair of electrons.
- In NH3, the central atom is N and it has 3 sigma bonds and 1 lone pair of electrons.
- Both have sp3 hybridization.
b) BF3 and NO2-:
- In BF3, the central atom is B and it has 3 sigma bonds and 0 lone pairs of electrons.
- In NO2-, the central atom is N and it has 2 sigma bonds and 1 lone pair of electrons.
- BF3 has sp2 hybridization and NO2- has sp3 hybridization.
c) NH2- and H2O:
- In NH2-, the central atom is N and it has 2 sigma bonds and 1 lone pair of electrons.
- In H2O, the central atom is O and it has 2 sigma bonds and 2 lone pairs of electrons.
- NH2- has sp2 hybridization and H2O has sp3 hybridization.
d) BF3 and NH2-:
- Same as option (b).
- BF3 has sp2 hybridization and NH2- has sp2 hybridization.
Therefore, the correct answer is option (b) - BF3 and NO2-.
Hybridization is the process of combining atomic orbitals to form hybrid orbitals that have different properties than the original orbitals. The central atom in a molecule/ion is the one that forms the most number of bonds. The hybridization of the central atom determines the shape and geometry of the molecule/ion.
The four types of hybridization are: sp, sp2, sp3, and sp3d. In sp hybridization, one s and one p orbital combine to form two hybrid orbitals. In sp2 hybridization, one s and two p orbitals combine to form three hybrid orbitals. In sp3 hybridization, one s and three p orbitals combine to form four hybrid orbitals. In sp3d hybridization, one s, three p, and one d orbital combine to form five hybrid orbitals.
To determine the hybridization of the central atom, we need to count the number of sigma bonds and lone pairs of electrons around it. The hybridization is then determined as follows:
- For 2 sigma bonds and 0 lone pairs, the hybridization is sp.
- For 3 sigma bonds and 0 lone pairs, the hybridization is sp2.
- For 4 sigma bonds and 0 lone pairs, the hybridization is sp3.
- For 5 sigma bonds and 0 lone pairs, the hybridization is sp3d.
Now, let's look at the given options:
a) NO2- and NH3:
- In NO2-, the central atom is N and it has 3 sigma bonds and 1 lone pair of electrons.
- In NH3, the central atom is N and it has 3 sigma bonds and 1 lone pair of electrons.
- Both have sp3 hybridization.
b) BF3 and NO2-:
- In BF3, the central atom is B and it has 3 sigma bonds and 0 lone pairs of electrons.
- In NO2-, the central atom is N and it has 2 sigma bonds and 1 lone pair of electrons.
- BF3 has sp2 hybridization and NO2- has sp3 hybridization.
c) NH2- and H2O:
- In NH2-, the central atom is N and it has 2 sigma bonds and 1 lone pair of electrons.
- In H2O, the central atom is O and it has 2 sigma bonds and 2 lone pairs of electrons.
- NH2- has sp2 hybridization and H2O has sp3 hybridization.
d) BF3 and NH2-:
- Same as option (b).
- BF3 has sp2 hybridization and NH2- has sp2 hybridization.
Therefore, the correct answer is option (b) - BF3 and NO2-.
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In which of the following pairs of molecules/ ions, the central atoms have sp2 hybridization? [2010]a)NO2- and NH3b)BF3 and NO2-c)NH2- and H2Od)BF3 and NH2-Correct answer is option 'B'. Can you explain this answer?
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In which of the following pairs of molecules/ ions, the central atoms have sp2 hybridization? [2010]a)NO2- and NH3b)BF3 and NO2-c)NH2- and H2Od)BF3 and NH2-Correct answer is option 'B'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about In which of the following pairs of molecules/ ions, the central atoms have sp2 hybridization? [2010]a)NO2- and NH3b)BF3 and NO2-c)NH2- and H2Od)BF3 and NH2-Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In which of the following pairs of molecules/ ions, the central atoms have sp2 hybridization? [2010]a)NO2- and NH3b)BF3 and NO2-c)NH2- and H2Od)BF3 and NH2-Correct answer is option 'B'. Can you explain this answer?.
In which of the following pairs of molecules/ ions, the central atoms have sp2 hybridization? [2010]a)NO2- and NH3b)BF3 and NO2-c)NH2- and H2Od)BF3 and NH2-Correct answer is option 'B'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about In which of the following pairs of molecules/ ions, the central atoms have sp2 hybridization? [2010]a)NO2- and NH3b)BF3 and NO2-c)NH2- and H2Od)BF3 and NH2-Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In which of the following pairs of molecules/ ions, the central atoms have sp2 hybridization? [2010]a)NO2- and NH3b)BF3 and NO2-c)NH2- and H2Od)BF3 and NH2-Correct answer is option 'B'. Can you explain this answer?.
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