Question

Compare and contrast hydrogen and covalent bonds (2 pt for each similarity/difference [8 pt]) brief explain

Answer 1

Character	Covalent bond	Hydrogen bond
Interaction	Mutual sharing of electrons between atoms	Electrostatic attraction between atoms
Type of bond	Intra-molecular which means with in molecule	Inter-molecular which means between molecules
Strength of bond	Strong bond	Weak bond
Type of bond	Primary	Secondary
Bond energy	100-1000 KJ/mole	5 – 50 KJ/mole.
Forms between	Atoms with suitable valency	Between hydrogen and electronegative element
Occurance	Both polar and non-polar molecules	Only in polar molecules
Leads to	Change both physical and chemical properties of the molecules involved	Changes only physical properties of the molecules invovled