Question

Two part orbital question. Will always thumbs up if answers are correct.

1. According to valence bond theory, which of the following molecules have a central atom that has an unhybridized p orbital?

Select all that apply.

BF3

NH3

CO2

OF2

None

2. Which of the following statements are true for hybrid orbitals?

Select all that apply.

sp hybrid orbitals have 50% s character and 50% p character

sp2 hybrid orbitals are the result of mixing three atomic orbitals

sp3 hybrid orbitals are oriented 90 degrees away from each other

none of the above

Answer 1

**for BF3 :hybridization of B is sp2 In boron there is an unhybridized
which is empty.

**for NH3::hybridization of N is SP3,Hence NH3 doesn't have unhybridized p orbital

**CO2::hybridization is sp for C . So Carbon has 2 unhybridized p orbitals.

**OF2 :: hybridization is SP3 . Hence the molecule does not have unhybridized
p orbital
******************************

2)
one s and one p makes sp .hence 50% character for both

one s and two p mixed together to get sp2 , there is a mixing of 3 orbitals

sp3 orbitals have bond angle 109.5 C

thus correct statements are
**sp hybrid orbitals have 50% s character and 50% p character

***sp2 hybrid orbitals are the result of mixing three atomic orbitals