Which one of the following molecules has a zero dipole moment?

Which out of $NH_{3}$ and $NF_{3}$ has a higher dipole moment and why?

Which of the following is a polar molecule?

Identify the correct statements from the following. $(1)$ The dipole moment of $CO_2$ and $BF_3$ is zero. $(2)$ The dipole moment of $NF_3$ is higher than the dipole moment of $NH_3$. $(3)$ The dipole moment of $HI$ is lower than the dipole moment of $HCl$.

Which of the following molecules has zero dipole moment?

Although both $CO_2$ and $H_2O$ are triatomic molecules,the shape of $H_2O$ molecule is bent while that of $CO_2$ is linear. Explain this on the basis of dipole moment.