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These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.
Assertion : BF3 molecule is planar but NF3 is pyramidal.
Reason : N atom is smaller than B.
Assertion : BF3 molecule is planar but NF3 is pyramidal.
Reason : N atom is smaller than B.
- a)Both Assertion and Reason are true and Reason is the correct explanation of Assertion
- b)Both Assertion and Reason are true but Reason is nor the correct explanation of Assertion
- c)Assertion is true but Reason is false
- d)Both Assertion and Reason are false
Correct answer is option 'B'. Can you explain this answer?
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These questions consist of two statements each printed as assertion an...
Answer:
Assertion: BF3 molecule is planar but NF3 is pyramidal.
Reason: N atom is smaller than B.
The correct answer is option 'B': Both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.
Explanation:
1. Planar Geometry of BF3:
- The BF3 molecule consists of a central boron atom (B) bonded with three fluorine atoms (F) surrounding it.
- Each fluorine atom forms a single covalent bond with the boron atom, resulting in a trigonal planar geometry.
- In the BF3 molecule, the boron atom has an empty p orbital, which allows the three fluorine atoms to bond with it in a planar arrangement.
- The shape of the molecule is determined by the repulsion between the bonding and non-bonding electron pairs around the central atom.
- The repulsion between the three bonding electron pairs in the case of BF3 results in a planar geometry.
2. Pyramidal Geometry of NF3:
- The NF3 molecule consists of a central nitrogen atom (N) bonded with three fluorine atoms (F) surrounding it.
- Each fluorine atom forms a single covalent bond with the nitrogen atom, resulting in a trigonal pyramidal geometry.
- In the NF3 molecule, the nitrogen atom has one lone pair of electrons, in addition to the three bonding electron pairs.
- The repulsion between the three bonding electron pairs and the lone pair of electrons around the nitrogen atom results in a pyramidal geometry.
- The lone pair of electrons occupies more space than the bonding electron pairs, leading to a distortion in the molecular geometry.
Comparison of Sizes:
- The reason given in the statement is that the nitrogen atom is smaller than the boron atom, which is incorrect.
- In reality, the boron atom is smaller than the nitrogen atom.
- The atomic radius of nitrogen is larger than that of boron.
- The size difference between the boron and nitrogen atoms is not the determining factor for the difference in geometry between BF3 and NF3.
Conclusion:
- The correct explanation for the difference in geometry between BF3 and NF3 lies in the presence of a lone pair of electrons on the nitrogen atom in NF3.
- This lone pair of electrons causes a distortion in the molecular geometry, leading to a pyramidal shape.
- Therefore, both the assertion and the reason are true, but the reason given is not the correct explanation for the assertion.
Assertion: BF3 molecule is planar but NF3 is pyramidal.
Reason: N atom is smaller than B.
The correct answer is option 'B': Both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.
Explanation:
1. Planar Geometry of BF3:
- The BF3 molecule consists of a central boron atom (B) bonded with three fluorine atoms (F) surrounding it.
- Each fluorine atom forms a single covalent bond with the boron atom, resulting in a trigonal planar geometry.
- In the BF3 molecule, the boron atom has an empty p orbital, which allows the three fluorine atoms to bond with it in a planar arrangement.
- The shape of the molecule is determined by the repulsion between the bonding and non-bonding electron pairs around the central atom.
- The repulsion between the three bonding electron pairs in the case of BF3 results in a planar geometry.
2. Pyramidal Geometry of NF3:
- The NF3 molecule consists of a central nitrogen atom (N) bonded with three fluorine atoms (F) surrounding it.
- Each fluorine atom forms a single covalent bond with the nitrogen atom, resulting in a trigonal pyramidal geometry.
- In the NF3 molecule, the nitrogen atom has one lone pair of electrons, in addition to the three bonding electron pairs.
- The repulsion between the three bonding electron pairs and the lone pair of electrons around the nitrogen atom results in a pyramidal geometry.
- The lone pair of electrons occupies more space than the bonding electron pairs, leading to a distortion in the molecular geometry.
Comparison of Sizes:
- The reason given in the statement is that the nitrogen atom is smaller than the boron atom, which is incorrect.
- In reality, the boron atom is smaller than the nitrogen atom.
- The atomic radius of nitrogen is larger than that of boron.
- The size difference between the boron and nitrogen atoms is not the determining factor for the difference in geometry between BF3 and NF3.
Conclusion:
- The correct explanation for the difference in geometry between BF3 and NF3 lies in the presence of a lone pair of electrons on the nitrogen atom in NF3.
- This lone pair of electrons causes a distortion in the molecular geometry, leading to a pyramidal shape.
- Therefore, both the assertion and the reason are true, but the reason given is not the correct explanation for the assertion.
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These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.Assertion: BF3molecule is planar but NF3is pyramidal.Reason: N atom is smaller than B.a)Both Assertion and Reason are true and Reason is the correct explanation of Assertionb)Both Assertion and Reason are true but Reason is nor the correct explanation of Assertionc)Assertion is true but Reason is falsed)Both Assertion and Reason are falseCorrect answer is option 'B'. Can you explain this answer?
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These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.Assertion: BF3molecule is planar but NF3is pyramidal.Reason: N atom is smaller than B.a)Both Assertion and Reason are true and Reason is the correct explanation of Assertionb)Both Assertion and Reason are true but Reason is nor the correct explanation of Assertionc)Assertion is true but Reason is falsed)Both Assertion and Reason are falseCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.Assertion: BF3molecule is planar but NF3is pyramidal.Reason: N atom is smaller than B.a)Both Assertion and Reason are true and Reason is the correct explanation of Assertionb)Both Assertion and Reason are true but Reason is nor the correct explanation of Assertionc)Assertion is true but Reason is falsed)Both Assertion and Reason are falseCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.Assertion: BF3molecule is planar but NF3is pyramidal.Reason: N atom is smaller than B.a)Both Assertion and Reason are true and Reason is the correct explanation of Assertionb)Both Assertion and Reason are true but Reason is nor the correct explanation of Assertionc)Assertion is true but Reason is falsed)Both Assertion and Reason are falseCorrect answer is option 'B'. Can you explain this answer?.
These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.Assertion: BF3molecule is planar but NF3is pyramidal.Reason: N atom is smaller than B.a)Both Assertion and Reason are true and Reason is the correct explanation of Assertionb)Both Assertion and Reason are true but Reason is nor the correct explanation of Assertionc)Assertion is true but Reason is falsed)Both Assertion and Reason are falseCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.Assertion: BF3molecule is planar but NF3is pyramidal.Reason: N atom is smaller than B.a)Both Assertion and Reason are true and Reason is the correct explanation of Assertionb)Both Assertion and Reason are true but Reason is nor the correct explanation of Assertionc)Assertion is true but Reason is falsed)Both Assertion and Reason are falseCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.Assertion: BF3molecule is planar but NF3is pyramidal.Reason: N atom is smaller than B.a)Both Assertion and Reason are true and Reason is the correct explanation of Assertionb)Both Assertion and Reason are true but Reason is nor the correct explanation of Assertionc)Assertion is true but Reason is falsed)Both Assertion and Reason are falseCorrect answer is option 'B'. Can you explain this answer?.
Solutions for These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.Assertion: BF3molecule is planar but NF3is pyramidal.Reason: N atom is smaller than B.a)Both Assertion and Reason are true and Reason is the correct explanation of Assertionb)Both Assertion and Reason are true but Reason is nor the correct explanation of Assertionc)Assertion is true but Reason is falsed)Both Assertion and Reason are falseCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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ample number of questions to practice These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.Assertion: BF3molecule is planar but NF3is pyramidal.Reason: N atom is smaller than B.a)Both Assertion and Reason are true and Reason is the correct explanation of Assertionb)Both Assertion and Reason are true but Reason is nor the correct explanation of Assertionc)Assertion is true but Reason is falsed)Both Assertion and Reason are falseCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice NEET tests.
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