Which one of the following has the lowest boiling point H2O?

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Solution

The correct option is D

H2S

Explanation for the correct option

(D) H2S

Boiling point

  • The boiling point of a liquid is the temperature at which the liquid's vapor pressure equals the atmospheric pressure of the liquid's surroundings.
  • The boiling point is determined by ionic bonding, intermolecular interactions, molecule structure, and size.
  • The type of functional group attached to the molecule has an impact on the parameters.

Boiling Point trends in group 16 elements

  • Except for water H2O, the boiling point of the group 16 hydride increases as the molecular mass increases.
  • Water is an exception owing to intermolecular hydrogen bonding between water molecules.
  • Because of the existence of high electronegativity oxygen atoms, water molecules form strong hydrogen bonds.
  • As a result, the boiling point of H2O is substantially higher than that of the other Hydride.
  • The boiling points of group 16 hydrides are as follows:

H2O> H2Te>H2Se>H2S.

  • Therefore, Hydrogen sulfide H2S has the lowest boiling point.

Explanation for incorrect options

  • Hydrogen sulfide H2S has the lowest boiling point.
  • Hence, all other options (A), (B), and (C) are incorrect.

Therefore, the correct option is (D) H2S.


Which one has the lowest boiling point H2O?

Therefore, the correct option is (D) H 2 S .

Which of the following has lowest boiling point CH4 H2O HF c2h5oh?

CH4 is the correct answer. Methane has the low boiling point cause it have very weak intermolecular force of attraction.

Which one has lowest boiling point H₂o H₂s H₂se H₂te?

Among H2O,H2S,H2Se and H2Te, the one with the highest boiling point is H2O because of intermolecular hydrogen bonding which leads to molecular association and leads to higher energy for boiling.

Does h20 have a low boiling point?

- In water molecules due to the presence of hydrogen attached with a more electronegative element that is oxygen, hydrogen bonding exists. While in the other two dipole-dipole interactions exists. Since hydrogen bonding is much stronger than dipole-dipole interaction, water has the highest boiling point.

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