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The lone pair of electron of nitrogen in ammonia is easily available for attack of an acid due to absence of 'd' orbital but in phosphorus vacant '3d' orbitals are available so electron pair of phosphorus may shift in '3d' orbitals and not easily available as pair for attack of an acid so phosphine is a weaker base.
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Why phosphine is a stronger reducing agent than ammonia?
Phosphine (PH3) is a stronger reducing agent than ammonia (NH3) because phosphorus is less electronegative than nitrogen, making it easier for phosphorus to donate electrons. This leads to phosphine being more readily oxidized and exhibiting stronger reducing properties compared to ammonia. Additionally, phosphine has a weaker P-H bond compared to the N-H bond in ammonia, which contributes to its stronger reducing ability.
Is ammonia a stronger base than water?
Yes. Ammonia has a pKb of 4.75. Water has a pKb of 13.995.
Is ammonia or hydroxide a stronger acid?
Neither is an acid. Both are bases, hydroxide is the stronger base.
Is PH3 is stronger than NH3?
PH3 (phosphine) is considered to be a weaker base compared to NH3 (ammonia) because the electronegativity of phosphorus is greater than nitrogen, making the lone pair on phosphorus less available for donation. This results in NH3 being a stronger base than PH3.
Which is a stronger base Ammonia or sodium hydroxide?
Sodium hydroxide is a stronger base compared to ammonia. This is because sodium hydroxide has a higher dissociation constant (pKa) and is more effective at donating hydroxide ions in solution, resulting in a higher pH compared to ammonia.
Why phosphine is a stronger reducing agent than ammonia?
Phosphine (PH3) is a stronger reducing agent than ammonia (NH3) because phosphorus is less electronegative than nitrogen, making it easier for phosphorus to donate electrons. This leads to phosphine being more readily oxidized and exhibiting stronger reducing properties compared to ammonia. Additionally, phosphine has a weaker P-H bond compared to the N-H bond in ammonia, which contributes to its stronger reducing ability.
Is ammonia a stronger base than water?
Yes. Ammonia has a pKb of 4.75. Water has a pKb of 13.995.
Is ammonia or hydroxide a stronger acid?
Neither is an acid. Both are bases, hydroxide is the stronger base.
Is PH3 is stronger than NH3?
PH3 (phosphine) is considered to be a weaker base compared to NH3 (ammonia) because the electronegativity of phosphorus is greater than nitrogen, making the lone pair on phosphorus less available for donation. This results in NH3 being a stronger base than PH3.
Which is a stronger base Ammonia or sodium hydroxide?
Sodium hydroxide is a stronger base compared to ammonia. This is because sodium hydroxide has a higher dissociation constant (pKa) and is more effective at donating hydroxide ions in solution, resulting in a higher pH compared to ammonia.
Why is sodium hydroxide stronger than ammonia?
Sodium hydroxide is stronger than ammonia because it is a strong base, dissociating completely in water to release hydroxide ions. On the other hand, ammonia is a weak base and only partially dissociates in water. This results in sodium hydroxide having a higher concentration of hydroxide ions, making it more reactive and stronger than ammonia.
What is stronger nitric acid or ammonia?
There is no real basis for comparison but nitric acid is a strong acid and ammonia is a weak base.
Why ammonia is stronger base than aniline?
Ammonia is a stronger base than aniline because the lone pair on the nitrogen in ammonia is more readily available for donation compared to the nitrogen in aniline, which is partially delocalized due to resonance. As a result, ammonia is able to more effectively accept a proton to form its conjugate acid, making it a stronger base.
Which is stronger base bleach or amonia?
Bleach contains OCl- ion. So it is a acid.
Why is ethanoic acid a stronger acid in liquid ammonia than in aqueous solution?
Ethanoic acid is a stronger acid in liquid ammonia because ammonia is a weaker base compared to water. Therefore, in liquid ammonia, ethanoic acid easily donates a proton to the ammonia molecules, forming the acetate ion. This proton transfer reaction is more favorable than in water due to the difference in the basicity of the solvent.
Why phosphine is more basic than ammonia?
This is because of the electronegitivity and size difference in the elements N and P. N has a higher electronegitivity and pulls the electrons in the N-H bonds toward itself, creating a more polar bond than the P-H bond. N is smaller than P thus it is a better lewis base, being able to form more stable sigma bonds. Both of these things cause NH3 to more readily take up a proton from solution.
WHY ammonia has higher boiling point then phosphine?
NH3 exhibits hydrogen bonding in addition to dispersion forces. This significantly increases the intermolecular force, and raises the boiling point. PH3 does not exhibit hydrogen bonding and the dominant intermolecular force holding these molecules together is dispersion forces. (Dispersion forces also known as Van Der Waal Force)
