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Arrange the following compounds in increasing order of their dipole moment : HBr , H ₂ ~S , NF ₃ and CHCl ₃

Options

  1. AH ₂ ~S HBr NF ₃ CHCl ₃
  2. BNF ₃ HBr H ₂ ~S CHCl ₃
  3. CHBr H ₂ ~S NF ₃ CHCl ₃
  4. DCHCl ₃ NF ₃ HBr H ₂ ~S

Correct answer

B. NF ₃ HBr H ₂ ~S CHCl ₃

Step-by-step solution

aligned & _ HBr =0.78 D & _ H ₂ ~S =0.95 D & _ NF ₃ =0.24 D & _ CHCl ₃ =1.01 D aligned Hence dipole moment of NF ₃ < HBr < H ₂ ~S < CHCl ₃

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