Question

why is a,b,d sp3? please help me, is it because of the lone pairs present on it? check picture attached

Answer 1

well to understand sp3 i always look at how many possible bonds are available. for a b and d, there are 4 possible bonds. to do sp3, the s counts as 1 so u subtract 4-1=3 so sp3. for c, there are only 3 possible bonds so 3-1=2 so sp2

Answer 2

of course it dont work all the time but for most i think it does

Answer 3

yeah i get u.. but in the picture for a, i cud only see 2 bonds. so im guessing there is lone pair present thats why it has a steric number of 4?

Answer 4

for a, the bond angel is for the carbon. since it only has single bonds around it, there is the lone pair hidden to make 4. 4-1=3