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NEET2015ChemistryStructure of AtomActual

Which of the following pairs of iron are isoelectronic and isostructural?

Options

  1. AC O 3 2 - , S O 3 2 -
  2. BC l O 3 - , C O 3 2 -
  3. CS O 3 2 - , N O 3 -
  4. DC l O 3 - , S O 3 2 -

Correct answer

D. C l O 3 - , S O 3 2 -

Step-by-step solution

Isoelectronic (same no of electrons) C l O 3 - & S O 3 2 - ⇒ 17 + 24 + 1 = 42 and 16 + 24 + 2 = 42 Isostructural (same type of hybridization) C l O 3 - ⇒ H = 1 2 7 + 1 = 4 s p 3 S O 3 2 - ⇒ H = 1 2 6 + 2 = 4 ( s p 3 )

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