HCl > H2O2 > HgCl2 > H2
The boiling point of a substance depends on several factors, including intermolecular forces, molecular size, and polarity.
HCl (hydrochloric acid) is a polar molecule with hydrogen bonding and dipole-dipole interactions. These strong intermolecular forces result in a relatively high boiling point.
H2O2 (hydrogen peroxide) is also a polar molecule with hydrogen bonding and dipole-dipole interactions. It has a slightly lower boiling point compared to HCl.
HgCl2 (mercury(II) chloride) is a compound composed of mercury and chlorine atoms. It has weaker intermolecular forces compared to HCl and H2O2, resulting in a lower boiling point.
H2 (hydrogen gas) is a nonpolar molecule with weak intermolecular forces (dispersion forces). It has the lowest boiling point among the given substances due to its small molecular size and lack of polarity.
Rank HCl, H2O2, H2, and HgCl2 in order of decreasing boiling point
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