Explain the following observations: HCl is a stronger acid than Hâ‚‚S

a) Hâ‚‚S has a lower molecular weight than HCl.
b) Hâ‚‚S has a higher boiling point than HCl.
c) Hâ‚‚S has a weaker bond strength than HCl.
d) Hâ‚‚S has a higher electronegativity than HCl.