Q.

Which of the following is the correct order of dipole moment      [2019]

1 NH3<BF3<NF3<H2O  
2 BF3<NF3<NH3<H2O  
3 BF3<NH3<NF3<H2O   
4 H2O<NF3<NH3<BF3  

Ans.

(2)