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AP EAMCET202120 Aug 2021Morning ShiftChemistryChemical Bonding and Molecular StructureActual

The correct order of Sulphur oxygen bond order in SO 3 , S 2 O 3 2 - and SO 4 2 - are

Options

  1. ASO 4 2 - < S 2 O 3 2 - < SO 3
  2. BSO 4 2 - < SO 3 < S 2 O 3 2 -
  3. CS 2 O 3 2 - < SO 4 2 - < SO 3
  4. DS 2 O 3 2 - < SO 3 < SO 4 2 -

Correct answer

C. S 2 O 3 2 - < SO 4 2 - < SO 3

Step-by-step solution

The SO 3 has the bond order of two. The bond order of SO 4 2 - :- It has the four resonating structure. It has the four equivalent oxygen atoms and six bonds between the sulphur and oxygen. Bond order = 6 4 = 1 . 5 The bond order of S 2 O 3 2 - :- It has the three resonating structure and there are four bonds formed between the sulphur and oxygen atoms. Bond order = 4 3 = 1 . 33 Hence, the correct order of Sulphur oxygen bond order is S 2 O 3 2 - < SO 4 2 - < SO 3 .

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