Which bonding is not possible for carbon with its 4 valence electrons?

Question

Quizplus · Accepted Answer

Carbon, with its 4 valence electrons, can form 4 single bonds, 2 single bonds and 1 double bond, or 1 single bond and 1 triple bond, as these configurations utilize all 4 electrons in bonding. However, forming 1 double bond and 1 triple bond would require 5 electrons (2 for the double bond and 3 for the triple bond), which exceeds carbon's 4 valence electrons, making it not possible.

Which Bonding Is Not Possible for Carbon with Its 4