Question
Which of the following possesses a $$sp$$ - carbon in its structure?
A.
$$C{H_2} = CCl - CH = C{H_2}$$
B.
$$CC{l_2} = CC{l_2}$$
C.
$$C{H_2} = C = C{H_2}$$
D.
$$C{H_2} = CH - CH = C{H_2}$$
Answer :
$$C{H_2} = C = C{H_2}$$
Solution :
In structure $$C{H_2} = C = C{H_2},$$ the middle carbon is attached with two $$\pi $$ -bonds, so it have $$sp$$ hybridisation.
$$\mathop {C{H_2}}\limits_{s{p^2}} = \mathop C\limits_{sp} = \mathop {C{H_2}}\limits_{s{p^2}} $$
Also, called allenes.