Which has more electronegativity NH3 or PH3?

Explanation:Nitrogen is more electronegative than the phosphorus atom. In NH3 nitrogen attracts the bonded pair of electrons between N and H atoms towards it and this effect is more in NH3 than in PH3.

Why is the bond angle of NH3 is more than PH3?

NH3​ The bond angle in NH3​ is larger than, in PH3​ because the P−H bonds are longer and the lower electronegativity of P permits electron-density to be displaced towards hydrogen to a greater extent than in the case of NH3​.

Why PH3 is less stable than NH3?

it means down the group, size of central atom E increases, with the increase in size of central atom, electronegativity decreases, As a result, the force of repulsion between bond pairs decreases and therefore, E – H bond becomes weaker. so, order of bond strength of hydride is NH3 > PH3 > AsH3 > SbH3 ..

Is PH3 stronger acid than NH3?

Due to smaller atomic size the density of lone pair electrons on N in NH3 is larger than that of P in PH3. So, NH3 is a stronger Lewis base than that of PH3.

Why NH3 has high melting point than HF?

As fluorine is more electronegative than nitrogen, the H-F bonds are much more polar than the N-H bonds. Due to the higher partial charges on H and F in HF, a hydrogen bond between HF molecules is stronger than that between NH3 molecules. The higher boiling point of HF is thus due to stronger H-bonds.

Why does bond angle decreases from NH3 to BiH3?

SOLUTION The bond angle decreases from NH3 to BiH3 as we from top to bottom due to decrease in the electronegativity of central atom. As the electronegativity of central atom decreases the bond angle of the molecule decreases.

Why does NH3 from hydrogen bonding but PH3 does not?

Nitrogen is highly electronegative as compared to phosphorus. This causes a greater attraction of electrons towards nitrogen in NH3 than towards phosphorus in PH3. Hence the extent of hydrogen bonding in PH3 is very less as compared to NH3.

Which is stronger reducing agent NH3 or PH3?

c BiH3 is the strongest reducing agent while NH3 is the weakest reducing agent. NH3,PH3,AsH3, SbH3, BiH3 -increasing báse strength.

Which will donate lone pair easily NH3 or PH3?

(a) Due to small size of nitrogen, the lone pair of available for donation. electron density of the lone pair on N in NH3 is more. Therefore, am- monia is strong base than phosphine .

Which is stronger Nucleophile NH3 or PH3?

Also, N-atom has valence electrons in L-shell while P-atom has valence electrons in K-shell. The smaller the shell more is the strength of bond formed. Hence, L-shell forms stronger bond after donating lone pair of electrons compared to that of P-atom. Hence, NH3 is better electron donor than PH3.

What is common in NH3 and PH3?

In NH_(3) and PH_(3), the common is PH3 both are basic because of the presence of lone pait of electrons.

Why does NH3 act as a better base than PH3?

In NH3 and PH3, the central atom posses a lone pair. As N is smaller than P, electron density on N is high compared to P. Therefore NH3 acts as better base than PH3. It also decreases as you r moving from NH3 to BiH3. Basicity order in hydrides of 15th group is NH3>PH3>AsH3>SbH3>BiH3.

Which is better electron donor nhnh3 or NhF3?

NH3 is better electron donor because the lone pair of electrons occupies sp3 orbital and is more directional. Please log in or register to add a comment.

What is the difference between N H 3 and P H 3?

is a base due to the lone pair of electrons present on the Nitrogen atom which is available for donation. On the other hand P H 3 is also a base but its basic character is less than that of N H 3 because the nitrogen in phosphorous have lone pair of electrons that are not readily available for donation.

Why lone pair in PH3 is strongly attracted by nucleus?

Since electrons in s-orbital are strongly attracted by nucleus, the lone pair in PH3 will be strongly attracted by nucleus of phosphorus. Since the lone pair is strongly attracted, it’s donation tendency decreases.