Which molecule among the following is non-polar?

Which of the following set of molecules will have zero dipole moment?

Which of the following is the correct order of dipole moment for the species given?

1. $N{H}_3<B{F}_3<N{F}_3<H_{2}O$

2. $B{F}_3<N{F}_3<N{H}_3<H_{2}O$

3. $B{F}_3<N{H}_3<N{F}_3<H_{2}O$

4. $H_{2}O<N{F}_3<N{H}_3<B{F}_3$

The correct order of ionic character among CaH₂, BeH₂, and BaH₂ is:

1. ${\mathrm{BeH}}_2<{\mathrm{CaH}}_2<{\mathrm{BaH}}_2$

2. ${\mathrm{CaH}}_2<{\mathrm{BeH}}_2<{\mathrm{BaH}}_2$

3. ${\mathrm{BeH}}_2<{\mathrm{BaH}}_2<{\mathrm{CaH}}_2$

4. ${\mathrm{BaH}}_2<{\mathrm{BeH}}_2<{\mathrm{CaH}}_2$

A molecule among the following that has the maximum dipole moment is:

Which of the following is a polar molecule?

What is the dominant intermolecular force or bond that must be overcome in converting liquid CH₃OH to a gas?

1. Hydrogen bonding

2. Dipole-dipole interaction

3. Covalent bonds

4. London dispersion force

Which of the following would have a permanent dipole moment:

1. BF₃

2. SF₄

3. SiF₄

4. XeF₄

H₂O is dipolar, whereas BeF₂ is not. It is because: