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Why bond angle of PH3 is less than H20

originally , even though PH3  and H2O  both have  two lone pairs ,   H2O has   two H atoms whereas  PH3 has three  H atoms  therefore   the H atoms in H20  are more spread out    as the no.  bond pairs are less whereas in PH3  there three H atoms i.e. the no. of  bond pairs are more  hence the H atoms are less spread out and the bond angle is less.
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Because james bond had done great movies
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It is called Drago's rule.
 It requires some conditions:
 1)Electronegativity of terminal atoms<=2.5
 2)Central atom's period number>=3
 3) The Steric number of central atom is 4
 4)The central atom has a minimum of 1 lone pair

 In such a situation there is no need to consider hybridisation of out central angle.
 So the bond angle is phosphine is around 90 degrees(94 to be accurate).
Hope this helps
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