Q.
How many of the following species have $sp^{2}$ hybrid atoms?
Diamond, Graphite, $C _{6 O },\left( SiH _{3}\right)_{3} N , AlCl _{3}, Al _{2}\left( CH _{3}\right)_{6}, SiC , H _{3} BO _{3}$,
layered $BN$ , borazine.
NTA AbhyasNTA Abhyas 2022
Solution: