QQuestionChemistry
QuestionChemistry
What is the best resonance structure for SCN − , according to computer models and bond lengths?
A. S-C double bond and C-N double bond.
B. S-C single bond and C-N triple bond.
C. S-C triple bond and C-N single bond.
D. S-C single bond and C-N double bond.
6 months agoReport content
Answer
Full Solution Locked
Sign in to view the complete step-by-step solution and unlock all study resources.
Step 1Let's solve this step by step using structural analysis and bonding principles:
Step 2: Analyze the Lewis Structure
- SCN⁻ has a total of 16 valence electrons (S: 6, C: 4, N: 5, and 1 extra electron from negative charge) - We need to distribute these electrons to minimize formal charges and maximize electron delocalization
Final Answer
S-C single bond and C-N double bond. The resonance structure with a single S-C bond and double C-N bond best represents the electronic structure of SCN⁻ according to computational models and experimental bond length measurements.
Need Help with Homework?
Stuck on a difficult problem? We've got you covered:
- Post your question or upload an image
- Get instant step-by-step solutions
- Learn from our AI and community of students