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JEE Main202312 Apr 2023Morning ShiftChemistryChemical Bonding and Molecular StructureActual

Given below are two statements: Statement I: SbCl 5 is more covalent than SbCl 3 Statement II: The higher oxides of halogens also tend to be more stable than the lower ones. In the light of the above statements, choose the most appropriate answer from the options given below.

Options

  1. AStatement I is incorrect but statement II is correct
  2. BBoth Statement I and Statement II are incorrect
  3. CBoth Statement I and Statement II are correct
  4. DStatement I is correct but statement II is incorrect

Correct answer

C. Both Statement I and Statement II are correct

Step-by-step solution

The oxidation state of + 5 in pentahalides is more covalent as compared to the + 3 oxidation state in trihalides. Due to the higher positive oxidation state of the central atom in pentahalide state, these atoms will have larger polarising power than the halogen atom attached to them since the polarising power is directly proportional to the charge. More is the polarisation, larger will be the covalent character of the bond. Hence, due to larger polarisation of bond in pentahalide state as compared to trihalide stat

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