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Which of the following molecule does not obey the octet rule?

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Important Questions on Nature of Chemical Bond

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MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 5 - Nature of Chemical Bond>Critical Thinking>Q 12
The octet rule is inadequate to explain:
i. incomplete and expanded octet in some molecules.
ii. the geometry of the molecules.
iii. difference in energies of the molecules.
iv. odd electron molecules.
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MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 5 - Nature of Chemical Bond>Critical Thinking>Q 13
Which of the following carbon-carbon bonds has the highest energy?
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MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 5 - Nature of Chemical Bond>Critical Thinking>Q 14
The total energy required to break all the bonds of a molecule AB2 in gaseous state is x kJ mol-1. Then the bond energy of the bond A-B in the molecule will be
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MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 5 - Nature of Chemical Bond>Critical Thinking>Q 15
Which among the following pairs have the same bond order?
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MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 5 - Nature of Chemical Bond>Critical Thinking>Q 16
Which of the following bond will be the most polar?
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MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 5 - Nature of Chemical Bond>Critical Thinking>Q 17
The bonds between the P atom and Cl atoms in PCl5 are likely to be 
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MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 5 - Nature of Chemical Bond>Critical Thinking>Q 18
NH3 is more polar than NF3 because,
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MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 5 - Nature of Chemical Bond>Critical Thinking>Q 19
Maximum covalent character is associated with which of the following compound?