Among H2S,SO2,H2O which one has least bond angle and why?
481It must be H2S i think....Hybridisation of H2S is sp3.....so ithas 2 lone pairs....now d effect of 2 lone pairs on d bond pairs will be more dan one lone pair in rest of d cases........
shiva what abt h20?same condition
996SO2 because it is trigonal planar structure having bond angle 120°
Swarna Kamal Dhyawala While others are tetrahedral stucture Anurag Ghosh Swarna he is asking about least bond angle,not the maximum oneSwarna Kamal Dhyawala ya sorry i read it wrong .. :P
158but...even in H2O...there is sp3 hybridisation and 2 lone pairs...since O is much smaller than S,wont 2 lone pairs on O create much more repulsion(and hence a lesser bond angle) than on S which has a much larger size??
Swarna Kamal Dhyawala But oxygen is more electronegative than sulphur. Hence, the bonding pair of electrons in O-H bonds are drawn closer to O. These electrons experience greater repulsive force compared to that in H2S. Therefore, the HOH angle is greater than HSH angle.1it h2o having lest bond angle because
1. every molecule has same no of lone pairs and hybridisation(s character)
2bond angle is directly propotional to electronegativity on attached atom and central atom since e.n of oxygen is less,therefore bond angle is less!