Verified Solution • 2025–26 Session moderate

QAIPM-2011-Ch-1794: NEET 2011 Chemistry - Class 11 AIPM-2011-Ch-1794 Solution: A solid compound XY has NaCl structure. If the radius of the…

A solid compound XY has NaCl structure. If the radius of the cation is 100 pm the radius of the anion (Y−Y^-) will be 275.1 pm 322.5 pm 241.5 pm 165.7 pm

Multiple Choice Options

  • A O2−,O22−O_2^ - ,O_2^{2 - } O 2 _ _ , O 2 2 _ _ - Both diamagnetic
  • B O2+,O2O_2^ + ,{O_2} O 2 + _ , O 2 _ - Both paramagnetic
  • C O, O22−O_{2}^{2-} O 2 2 _ _ - Both paramagnetic
  • D O+,O22−{O^ + },O_2^{2 - } O + , O 2 2 _ _ - Both paramagnetic

Step-by-Step Verified Solution

O 2 + = KK_2s 2 _*2s 2 _2p z 2 (�2p x 2 = �2p y 2 ) (�*2p x 1 ) O 2 = KK_2s 2 _*2s 2 _2p z 2 (�2p x 2 = �2p y 2 ) (�*2p x 1 = �*2p y 1 ) O 2 and O 2 + contain unpaired electron in �* ABMO so paramagnetic.

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