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AP EAMCET202021 Sep 2020Evening ShiftChemistryChemical Bonding and Molecular StructureActual

Which among the following represents the correct order of variation of bond angles in the given molecules?

Options

  1. A( NH ₃> NF ₃> PCl ₃> BF ₃ )
  2. B( BF ₃> PCl ₃> NH ₃> NF ₃ )
  3. C( BF ₃> NH ₃> PCl ₃> NF ₃ )
  4. D( BF ₃> NH ₃> NF ₃> PCl ₃ )

Correct answer

D. ( BF ₃> NH ₃> NF ₃> PCl ₃ )

Step-by-step solution

Bond angle in ( BF ₃ (120^ ), NH ₃ (107^ ), NF ₃ (102^ ) ) and ( PCl ₃ (100^ ) ). ( BF ₃ ) is trigonal planar, hence Hence, the correct option is (d).

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