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Structure of Atom question

2008 · Shift 0 · Q29
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Structure of Atom question

2008 · Shift 0 · Q29

JEE MainChemistryStructure of AtomMCQ+4 / −1
Which one of the following constitutes a group of the isoelectronic species?
  1. A
    C22−C_2^{2 - }C22−​, O2−O_2^{-}O2−​, CO, NO
  2. B
    NO+NO^{+}NO+, C22−C_2^{2 - }C22−​, CN−CN^-CN−, N2N_2N2​
  3. C
    CN−CN^-CN−, N2N_2N2​, O22−O_2^{2-}O22−​, C22−C_2^{2 - }C22−​
  4. D
    N2N_2N2​, O2−O_2^{-}O2−​, NO+NO^{+}NO+, CO
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