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NEET 2002
Exam
NEET
Year
2002
Subject
Chemistry
Chapter
Structure of Atom

NEET 2002 · Chemistry · Structure of Atom

Which of the following is isoelectronic?

Which of the following is isoelectronic?

Options

  1. ACO2,NO2\mathrm{CO}_2, \mathrm{NO}_2
  2. BNO2−,CO2\mathrm{NO}_2^{-}, \mathrm{CO}_2
  3. CCN−,CO\mathrm{CN}^{-}, \mathrm{CO}
  4. DSO2,CO2\mathrm{SO}_2, \mathrm{CO}_2

Correct answer

C. CN−,CO\mathrm{CN}^{-}, \mathrm{CO}

Step-by-step solution

In CN−\mathrm{CN}^{-}the number of electrons =6=6 +7+1=14+7+1=14 In CO\mathrm{CO} the number of electrons =6+=6+ 8=148=14
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