Question 1
A molecular compound that obeys the octet rule in which all atoms have a zero formal charge is
◦ NH
3.
◦ SrBr
2.
◦ BrF
3.
◦ XeF
4.
Question 2
Among the compounds H
3C—CH
3, H
2C=CH
2, and HC

CH, the compound with the strongest carbon-carbon bond is ________, and the compound with the longest carbon-carbon bond is ________.