Question

At ordinary temp H2S is gas but H2O is liquid explain why?

Answer 1

The ability of Oxygen atom to pull electrons is greater than of Sulfur i.e. O is more electronegetive than S. When an hydrogen is connected to an highly electronegative element like Oxygen (this usually happens with fluorine, oxygen, and nitrogen), it has higher intermolecular forces like Hydrogen bonding. Its a very strong bond that packs the water molecules closely together, forming a liquid while sulfur does not attract H nearly as strongly so they dissociate into a gas........