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NCERT Class XII Chemistry
Chapter - The p-Block Elements
Questions with Solutions

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Question : 34
Total: 74
With what neutral molecule is ClO‌– isoelectronic? Is that molecule a Lewis base?
Solution:  
Replace O‌–(9 electrons) in ClO‌–by F (9 electrons). The resultingneutral molecule is ClF. Since ClF can combine further with F to formClF‌3, so, ClF is a Lewis base.
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