What compound has the strongest hydrogen bonding at stp?

What compound has the strongest hydrogen bonding at stp? 1) h2o 2)h2s 3)h2se 4)h2te

The strongest hydrogen bond sort is the one involving a bond between oxygen, nitrogen and fluorine, with a hydrogen atom. Since within the selections, solely water exhibits a O-H bond, subsequently that is the strongest hydrogen bonding. The reply is water.

Possibility (1) is the proper reply. Clarification: Oxygen, sulfur, selenium and tellurium are all group 8 components. As we go robe the group there will probably be lower in electronegativity of atoms. Additionally, extra is the electronegativity of an  atom extra it’s going to appeal to the electrons in direction of itself. This may consequence within the formation of partial expenses on the combining atoms. Thus, the molecule turns into polar. Right here, oxygen is probably the most electronargative out of the given choices, so it’s going to appeal to the electrons extra in direction of itself. Therefore, it’s going to have the strongest hydrogen bonding at STP.

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Hydrogen compounds with O, F or N are the strongest at STP. Due to this fact, the reply out of those selections can be H2O, also referred to as water.

1) H2O is the proper reply.

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