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Chemical Bonding And Molecular Structure

Question
CBSEENCH11008314
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Which of the following has the minimum bond length?

  • O2-

  • O22-

  • O2

  • O2+

Solution

D.

O2+

Bond space order space equals fraction numerator space straight n subscript straight b space minus straight n subscript straight a over denominator 2 end fraction therefore space the space bond space order space of space given space molecule Bond space order space of space straight O subscript 2 superscript space plus end superscript space equals space fraction numerator 10 minus 5 over denominator 2 end fraction space equals space 2.5 Bond space order space of space straight O subscript 2 superscript space minus end superscript space equals space fraction numerator 10 minus 7 over denominator 2 end fraction space equals space 1.5 Bond space order space of space straight O subscript 2 superscript space 2 minus end superscript space equals space fraction numerator 10 minus 8 over denominator 2 end fraction space equals space 1 Bond space order space of space straight O subscript 2 superscript space space equals space fraction numerator 10 minus 6 over denominator 2 end fraction space equals space 2
therefore, maximum bond order = minimum bond length.
Hence bond length is minimum for O2+

Some More Questions From Chemical Bonding and Molecular Structure Chapter

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Name the conditions for the formation of an ionic bond between two atoms.

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Write Lewis dot symbols for atoms of the elements Mg, Na, B, O, N, Br.

Draw the Lewis structure for the ionic compound by aluminium and fluorine.

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A = 1s22s22p63s2 and B = 1s22s22p5
Write the empirical formula of the substance containing A and B.

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(ii) a non-metal and another non-metal?

Give reasons in one or two sentences for the observation that in their compounds non-metals form anions and not cations.

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