Doubt from d block


My answer = 18 (I have counted both sigma and pi bond). Given answer by resonance 12. Share your opinion.

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For these kind of questions ,the answer depends on how students interpret....
They mentioned Cr-O bond (so they mean it’s only sigma bond) ... ??

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According to me , it should have been 18 , it’s no where mention Cr—O sigma bond , it just states number of Cr—O bond .

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Think about the above explanation once , this is for only dichromate ion.

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6 identical Cr—O bond ?? I didn’t quite get that

Ok. I am getting your point. When we not consider lewis structure and consider resonance structure it makes a lot of sense. Dekte h nta kya answer deta h . Ab to sahi hone ka umid bhi gya :joy:


Allen opinion on this question

Exactly all the bonds i.e sigma + pie should be considered

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Yess . Now I am thinking to challenge it.

@Ankith_2020 allen has given this answer in their answer key , so they would have already challenged it , you need not worry about it anymore

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