Table of Contents
Which is more stable pf3 or PCl3?
The bond strength difference among the relaxed P-X bonds (i.e., the relaxed P-F bond ( 475 kJ mol ) is much stronger than either the relaxed P-H bond ( 287 kJ mol ) or the relaxed P-Cl bond ( 288 kJ mol )) suggests that PF3 is more stable than PH3 and PCl3 on Ru(0001) at 300 K.
Why is PCl5 less stable?
PCl5 has a trigonal pyramidal shape. The bond pair – bond pair repulsion is greater in the two axial P-Cl bonds as compared to the three equatorial P-Cl bonds. Due to this, the axial P-Cl bonds are less stable and are removed readily when PCl5 is heated.
Which is more reactive PCl5 or PCl3?
As the axial bond pairs suffer more repulsive forces from the equatorial bond pairs, therefore the axial bonds are slightly elongated and hence slightly weaker than equatorial bonds. This makes PCl5 very reactive. Hence it is more reactive than PCl3, though the latter is also quite reactive and fumes in air.
What is the difference between PCl3 and PCl5?
1) Structure of PCl3: It has a pyramidal shape as shown, in which phosphorus is sp3 hybridised. 2) Structure of PCl5: It has a trigonal bipyramidal structure, in gaseous and liquid phases.
Why is PCl3 more stable?
PCl3 is more stable than PCl5 because PCl5 has steric crowding(triagonal bipyramidal shape and sp3d2 hybridisation) than PCl3(triagonal planar structure and sp3 hybridisation).
Why is PCl3 stable?
PCl3 – is a STABLE molecule because all the atoms of the molecule have 8 valence electrons…
Is PCl3 stable or unstable?
Why PCl3 is less reactive than PCl5?
Selina – Chemistry – Class 7 In pcl5 the two axial bonds are longer than three equitorial bond (bond length of axial bond 240 pm) the axial bond pairs suffer more repulsion as compaired to equtorial bons . but in pcl3 three is no any axial bond . so pcl5 is more reactive than pcl3.
Which is more reactive molecule and why PCl5 or sf6?
All S-F bonds are equal in length and are equal in strength. So, two of P-Cl bonds are axial and are more in length than the other three equatorial bonds. These axial bonds are weaker and break easily. Because of this, PCl5 is reactive.
Why is PCl3 not stable?
Is PCl3 unstable?
Why is PCl5 more reactive than PCl3?
Why Pcl5 is more reactive than … Because in PCl5 the axial bonds are repelled by the equitorial bonds due to which PCl5 is reactive but in case of PCl3 there is no axial bonds . Because pcl5 oxidation no is 5 and pcl3 is 3
Which is more stable – P C 5 or P c 3?
P C l 3 is more stable as compared to P C l 5 because when P C l 5 is subjected to heat it readily get converted into P C l 3 by the removal of less stable two axial P – C l bonds. Reaction involve is given below : P C l 5 → h e a t P C l 3 + C l 2 Structure of P C l 3 a n d P C l 5 i s g i v e n b e l o w
Why is phosphorus trichloride more stable than phosphorus pentachloride?
Phosphorus Trichloride is more stable than Phosphorus pentachloride because PCl5 has more density (trigonal bipyramidal and sp3d2 hybridisation) than PCl3 (structure of the trigonal planet and sp3 hybridisation). Find, evaluate and source engineering materials online.
What is the shape of the ionic compound PCl5?
PCl5 is a crystalline solid. I t exists as PCl4+ and PCl6- ions. The former has tetrahedral and the later has octahedral structure These structures do account for efficient packing in form of crystals,which is more favourable as the two specis are ionic.