can someone HELP ME WITH CHEM??

Question

im having trouble with this question:

what is the hybridization of the carbon in acetonitrile?
how do i go about finding this?

H-C= N

there are 3 bonds between C & N.


THANKs

Answer 1

Carbon; when it form 4 single bonds the 2s2 and the 2p2 electrons are used in forming each single bond. As electrons are negative species they repel each other and so lie in a tetrahedral position. However when HCN is formed carbons four electrons are 'forced' into two orbitals. An 's' orbital for the single bond hydrogen and a 'p' orbital for the three CN bonds. This is described as hybridization .It is shown on paper as 'sp' orbital.
Methane (CH4) the orbitals are sp^3
Ethene (CH2CH2) the orbitals are sp^2
-CN bond the orbitals are sp.