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Karnataka Board PUCPUC Science 2nd PUC Class 12

Which of the following is isoelectronic pair? - Chemistry

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Question

Which of the following is isoelectronic pair?

Options

  • \[\ce{ICI2, ClO2}\]

  • \[\ce{BrO^{-}_{2}, BrF^{+}_{2}}\]

  • \[\ce{ClO2, BrF}\]

  • \[\ce{CN^{-}, O3}\]

MCQ
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Solution

\[\ce{BrO^{-}_{2}, BrF^{+}_{2}}\]

Explanation:

\[\ce{BrO^{-}_{2}}\] (35 + 2 × 8 + 1 = 52)

And 

\[\ce{BrF^{+}_{2}}\] (35 + 2 × 9 – 1 = 52)

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Chapter 7: The p-block Elements - Multiple Choice Questions (Type - I) [Page 94]

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NCERT Exemplar Chemistry [English] Class 12
Chapter 7 The p-block Elements
Multiple Choice Questions (Type - I) | Q 27 | Page 94

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