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Chapter 9: Q9.87CP (page 376)

Which of the bonds in the Problem 9.85 is the least polar?

Short Answer

Expert verified

The Si-F bond is least polar bond.

Step by step solution

01

Bond Polarity

Polarity of a bond decreases as the electronegativity difference between the atoms decreases.

The electronegativity difference in Hg-I bond is(2.2−1.5)=0.7

The electronegativity difference in P - I bond is(2.2−1.8)=0.4

The electronegativity difference in Si- F bond is(2.2−2.1)=0.1

The electronegativity difference in Mg –N bond is(3.1−1.3)=1.8

02

Least polar bond 

The electronegativity difference in Si-F bond is minimum among the four at = (2.2-2.1) = 0.1

The Si-F bond is least polar bond.

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