Question

question 7 (1 point) saved what is the correct order of bond polarity of the bonds c - cl, si - cl, and p - cl beginning with the least polar? si - cl, p - cl,c - cl p - cl, c - cl, si - cl c - cl, p - cl, si - cl c - cl, si - cl, p - cl

Explanation:

Step1: Recall electronegativity concept

Bond polarity depends on electronegativity difference between atoms. Chlorine has an electronegativity of 3.16. Carbon's electronegativity is 2.55, silicon's is 1.90 and phosphorus's is 2.19.

Step2: Calculate electronegativity differences

For C - Cl: $\Delta\chi=3.16 - 2.55=0.61$. For P - Cl: $\Delta\chi=3.16 - 2.19 = 0.97$. For Si - Cl: $\Delta\chi=3.16 - 1.90=1.26$.

Step3: Order bonds by polarity

Smaller electronegativity difference means less polarity. So order from least to most polar is C - Cl, P - Cl, Si - Cl.

Answer:

C. C-Cl, P-Cl, Si-Cl