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The PH3 bond angle will be about 90 degreessinceit has a trigonal pyramidal molecular geometry (it will be abitless since the lone pair will push down).
Similarly, it is asked, what is the ideal bond angle in ph3?
In ammonia sp3 hybridization occurs .So itsbondangle should have been 109°28' . But due to thepresence oflone pair it is slightly less. So it was expected thatthe anglein PH3 will also be approximately same. But , itwas found tobe around 90°.
Also asked, what is the bond angle of phosphine?
Structure of Phosphine The bond angle H-P-H is = 93°. On theotherhand, ammonia has pyramidal geometry with a bond angleof107.80. Thus, we see that both these chemicals haveacomparative bond angle. Phosphorus is lesselectronegativethan nitrogen.
While the bond angle of PH3 islessthan that of PF3. Both PH3 and PF3arepyramidal in shape. The bond angle is more in PF?3 duetolone pair-bond pair repulsion. As flourine is smallerinsize and more electronegative than hydrogen, thebondpair of electrons is towards F.