Question

which molecules had maximum dipole moment
1. CO2
2. CH4
3. NH3
4. NF3

Answer 1

NH3....................

Answer 2

Answer:

3.NH3

Explanation:

In (1st),CO2 has zero dipole moment as both oxygen is electronegative and cancels each other effect.

In CH4,Carbon is more electronegative but less electronegative than Nitrogen

so Nitrogen attracts most electron and thus max. dipole moment.

While in Nf3(4) Flourine is more electronegative so it pulls all towards it's self .