Which of the following are isoelectronic and iso-structural NO−3, CO2−3, CIO−3, SO3?

Q. Which of the following are isoelectronic and iso-structural NO−3, CO2−3, CIO−3, SO3?

  1. NO3,CO2−3
  2. SO3, NO−3
  3. CIO3, CO2−3

Answer: NO3,CO2−3

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