Question

Using VSEPR theory explain shape of
a) Sf4,BrF5 and Xeo3,
b) Why at room temperature H2O liquid but H2S is gas
c) What you meant by intra-molecular hydrogen bonding explain with example.​

Answer 1

Answer:

This is because, H20 has intermolecular hydrogen bond between it's molecule (H-O-H------H-O-H) while H2S has weak Van Der Wals forces between it's molecule.Hence the molecules of H2O are strongly packed than H2S,thus water is at liquid state at room temperature

Intramolecular hydrogen bonds are those which occur within one single molecule. This occurs when two functional groups of a molecule can form hydrogen bonds with each other. In order for this to happen, both a hydrogen donor an acceptor must be present within one molecule, and they must be within close proximity of each other in the molecule. For example, intramolecular hydrogen bonding occurs in ethylene glycol ( C2H4(OH)2 ) between its two hydroxyl groups due to the molecular geometry.

Answer 2

Explanation:

according to VSEPR theory

sf4 have seesaw and brf5 have square pyramid and XeO3 have pyramidal shape.

in H2O Hive intermolecular hydrogen bonding so so this is in liquid phase but H2S have not. intramolecular hydrogen bonding means in which molecule have hydrogen bonding within molecule.