Table of Contents
Why NH3 has higher bond angle 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 is the bond angle of water less than the bond angle of ch4?
The H—C—H bond angle in methane is the tetrahedral angle, 109.5°. This angle is obtained when all four pairs of outer electrons repel each other equally. The bond angles in ammonia and in water are less than 109.5° because of the stronger repulsion by their lone pairs of electrons.
Why is the bond pair in NH3 closer to N than PH3?
The bond pair in NH3 is close to N in N-H bond than the bond pair in P-H bond in PH3 . This is because the size of the nitrogen is small than phosphorus . As a result , the force of repulsion between the bonded pair of electrons in PH3 is more than in NH3 .
What is the difference between PH3 and PH4?
Difference is PH3 has a lone pair of electrons.. there exists repulsion between lone pair electrons and bond pair electrons.. order of such repulsion is lone pair-lone pair >lone pair-bond pair >bond pair-bond pair.. as evident here exists the second type of repulsion. While in PH4 there is no lone pair. All 4 are bond pair.
What is the bond angle of PH3 in ammonia SP3?
In ammonia sp3 hybridization occurs .So its bond angle should have been 109°28′ . But due to the presence of lone pair it is slightly less. So it was expected that the angle in PH3 will also be approximately same. But , it was found to be around 90°.
What is the hybridisation of PH3 and PH4?
Both have sp3 hybridisation.. Difference is PH3 has a lone pair of electrons.. there exists repulsion between lone pair electrons and bond pair electrons.. order of such repulsion is lone pair-lone pair >lone pair-bond pair >bond pair-bond pair.. as evident here exists the second type of repulsion. While in PH4 there is no lone pair.