Quick Answer: Which Hydride Has Lowest Boiling Point?

Which has higher boiling point h2s or H2Se?

In the final review session, Lyndon said that H2Se has a greater boiling point (and therefore stronger bonds) because it has greater London dispersion forces than H2S does..

Why water has high melting and boiling point than h2s?

Solution : This is an account of intermolecular hydrogen bonding which is present in the molecules of H2O but is absent in the molecules of H2S. As a result, both melting and boiling point of water are higher than those of hydrogen sulphide.

Which hydride has the lowest melting point?

∴PH3 has lowest melting point.

Which noble gas has the highest boiling point?

noble gases XenonAmong the given noble gases Xenon has the highest boiling point.

What is the boiling point of helium?

-268.9 °CHelium/Boiling point

What is the trend in boiling point?

The increase in boiling (and melting point) can be attributed to the increase in intermolecular forces (van der Waals). The number of electrons increases in each element going down the group, this leads to an increase in temporary dipoles which can be set up.

What has the lowest melting point?

HeliumThe chemical element with the lowest melting point is Helium and the element with the highest melting point is Carbon.

Which of the following hydrides has the highest boiling point?

In hydrides of group 16 , H2O has highest boiling point . It is due to extensive H–bonding which exist even in liquid state.

Which alloy has the lowest melting point?

GalliumGallium-based: Due to its extremely low melting point, gallium-based alloys have the ability to melt when held in a person’s hand. It changes into a liquid at room temperature, as manufacturers will often use it for thermal management applications.

Which has higher boiling point Ne or Xe?

Neon atoms will break away from each other at much lower temperatures than xenon atoms – hence neon has the lower boiling point. This is the reason that (all other things being equal) bigger molecules have higher boiling points than small ones.

Which of the following hydride has lowest boiling point?

The boiling point of H2S is lowest.

Which has lowest boiling point?

HeliumThis list contains the 118 elements of chemistry. For chemistry students and teachers: The tabular chart on the right is arranged by boiling point. The chemical element with the lowest boiling point is Helium and the element with the highest boiling point is Tungsten.

Which one has highest boiling point?

The more sphere like the molecule, the lower its surface area will be and the fewer intermolecular Van der Waals interactions will operate. Hence C4H9Cl straight chain molecule with the highest number of carbons has the highest boiling point.

Why h2s has low boiling point?

Sulfur is not nearly as electronegative as oxygen so that hydrogen sulfide is not nearly as polar as water. Because of this, comparatively weak intermolecular forces exist for H2S and the melting and boiling points are much lower than they are in water.

Which hydride has maximum bond angle?

a) Among H2O, H2S, H2Se, H2Te. 1) As we go down the group, size of the atom increases, it becomes easier for the hydrogen to get departed. 2) Oxygen being smallest in group, has lone pairs more closely attached, this creates repulsions, leading to maximum bond angle.

Which has higher boiling point h20 or h2s?

Water has a higher boiling point than hydrogen sulphide. The intermolecular attractions between water molecules are stronger than H2S molecules due to hydrogen bonding in H2O due to high electronegativity and small size of oxygen atom.

Which has a higher boiling point Kr or Ar?

According to the intermolecular forces, the larger the molecule/atom, the higher the boiling point. Comparing krypton and argon from the periodic trends, in terms of atomic radius. Krypton has a larger atomic radius than argon. Thus, krypton has a higher boiling point than argon.

Why does boiling point increase in noble gases?

The boiling points of the noble gases increase as their atomic masses increase. … The outer electrons are less tightly held in the larger atoms, so the electron clouds are more polarizable and the instantaneous dipoles are more easily induced.