What will be the hybridization of a carbon atom that is singly bonded to another carbon while being doubly bonded to an oxygen atom?

Question

Please choose the answer from the following choices below:

A. This carbon will have an sp3 hybridization

B. This carbon will have an sp2 hybridization

C. This carbon will have an sp hybridization

D. Cannot be determined by the information given

Note: Please provide an explanation if you can.

Answer 1

It will be an sp² hybrid. While not specifically stated, it states that it is singly bonded to another carbon and, since C has 4 bonding sites, with that and the double bond to the O atom, there remains only one more possible bond. Hence, an sp² hybrid.