(A) Generally hydrogen bonding exists when H is covalently bonded to the highly electronegative atom like F,O,N. (B) Intramolecular H bonding is present in
(C) Intermolecular Hydrogen bonding is present in HF (D) The magnitude has Hydrogen bonding in solid state is greater than liquid state. (E) Hydrogen bonding has powerfull effect on the structure & properties of compound like melting point, boiling point, density etc.