Which is more polar, a sulfur-bromine (S-Br) bond or a selenium-chlorine (Se-Cl) bond?
A. A sulfur-bromine bond should be more polar because of a smaller difference in effective nuclear charge.
B. A sulfur-bromine bond should be more polar because of a greater difference in effective nuclear charge.
C. A selenium-chlorine bond should be more polar because of a greater difference in effective nuclear charge.
D. A selenium-chlorine bond should be more polar because of a smaller difference in effective nuclear charge.
Answer: C
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