Question

What molecule has a central atom that is sp hybridized?

Answer 1

Prop-1, 2-ene

Explanation:

For especially carbon compounds it is very easy to identify the hybridization of the carbon. If the carbon has no double bond it is `sp^3`, if it has one double bond it is `sp^2` and if it has two double bonds it is `sp` hybridized.

Hence, prop-1,2-ene as a molecule with two double bonds works. (and the center carbon is the one which is sp hybridized).

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You could also look at an alkyne such as propyne, which instead of two double bonds has one triple bond. Once again, the center carbon is `sp` hybridized:

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