GENERAL KNOWLEDGE

Detailed explanation-1: -HF is a polar molecule: dipole-dipole forces.

Detailed explanation-2: -Flourine is the most electronegative element of the periodic table and hydrogen atom is bonded with flourine in HF. So, it will show intermolecular hydrogen bonding.

Detailed explanation-3: -The bond between hydrogen and fluorine in a molecule of hydrogen fluoride. HF is sometimes considered an ionic bond and other times is considered a covalent bond.

Detailed explanation-4: -Answer:(c)The intermolecular bonding for HF is hydrogen, whereas, for HCl, the intermolecular bonding is van der Waals. Since the hydrogen bond is stronger than van der Waals, HF will have a higher boiling temperature. Reason: This is because of the electronegativity property of Fluorine.

Detailed explanation-5: -The high boiling points of water, hydrogen fluoride (HF) and ammonia (NH3) is an effect of the extensive hydrogen bonding between the molecules. The London dispersion force is caused by random and temporary changes in the polarity of atoms, caused by the location of the electrons in the atoms’ orbitals.