Hybridization Analysis in Structure X

Steps:

• Identify bond types and geometries in the diagram of X.
• Count atoms with linear arrangement (180° angles) indicating sp hybridization.
• Count atoms with tetrahedral geometry (109.5° angles) indicating sp³ hybridization.
• Compare counts to option descriptions for matching row.

Why C is correct:

• Structure X contains 6 sp hybridized atoms (from triple bonds) and sp³ hybridized atoms, consistent with hybridization theory where sp applies to two sigma bonds and one pi bond pair.

Why the others are wrong:

• A: Incorrectly lists sp² (trigonal planar) instead of sp³ for non-linear atoms.
• B: Understates sp hybridized atoms as 4, not 6.
• D: Misidentifies sp hybridized atoms as sp² (120° angles).

Final answer: C