Which one is correct order of dipole moment ?

1.	Which one is correct order of dipole moment ?
Answer» `CH_(4) lt NF_(3) lt NH_(3) lt H_(2) O ` `NF_(3) lt CH_(4) lt NH_(3) lt H_(2)O` `NH_(3) lt NF_(3) lt CH_(4) lt H_(2)O` `H_(2) O lt NH_(3) lt NF_(3) lt CH_(4)` SOLUTION :`CH_(4) lt NF_(3) lt NH_(3) lt H_(2) O ` In `H_(2) O` molecule difference of ELECTRONEGATIVITY L0) is more. So dipole moment is more. But `CH_(4)` is symmetrical so dipole moment is zero.

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