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QJEEM08Chbb5d: JEE Main 2008 Chemistry - Class 11 JEEM08Chbb5d Solution: Which one of the following constitutes a group of the…

Which one of the following constitutes a group of the isoelectronic species?

Multiple Choice Options

  • A C22−C_2^{2 - } , O2−O_2^{-} , CO, NO
  • B NO+NO^{+} , C22−C_2^{2 - } , CN-, N2N_2
  • C CN-, N2N_2 , O22−O_2^{2-} , C22−C_2^{2 - }
  • D N2N_2 , O2−O_2^{-} , NO+NO^{+} , CO

Step-by-Step Verified Solution

Species No. of electrons
C22- 12+2 = 14
O2- 16+1 = 17
CO 6+8 = 14
NO 7+8 = 15
NO+ 7+8-1 = 14
C22- 12+2 = 14
CN- 6+7+1 = 14
N2 14
CN- 6+7+1 = 14
N2 14
O22- 16+2 = 18
C2 12
N2 14
O2- 16+1 = 17
NO+ 7+8-1 = 14
CO 6+8 = 14


So, option (B)(B) is correct.

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