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MDCAT Chemistry QUESTION #4374
Question 1
Correct arrangement of orbital according to size of hybridized orbitals:
  • $sp > sp^2 > sp^3$
  • $sp^3 > sp > sp^2$
  • $sp^2 > sp > sp^3$
  • $sp^3 > sp^2 > sp$✔️
Correct Answer Explanation
The size of hybridized orbitals increases with increasing $sp^3$ character: $sp^3 > sp^2 > sp$. This is because more p-character means more diffuse, larger orbitals, and $sp^3$ has the most p-character (75%).