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Chapter 9: Q9.86CP (page 376)

Which of the bonds in Problem 9.84 is the most polar?

Short Answer

Expert verified

The N-S bond is the most polar bond.

Step by step solution

01

Bond polarity

Polarity of a bond increases as the electronegativity difference between the atoms increases

The electronegativity difference in N-S bond is(3.1-2.4)=0.7

The electronegativity difference in Si - I bond is(2.2鈭�1.8)=0.4

The electronegativity difference in N- Br bond is(3.1鈭�2.8)=0.3

The electronegativity difference in C 鈥� Cl bond is(2.9鈭�2.5)=0.4

02

Most polar bond

The electronegativity difference in N-S bond is maximum among the four at = (3.1-2.4) = 0.7

The N-S bond is most polar.

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Most popular questions from this chapter

The energy of the C-C bond is 347 kJ/mol, and that of the Cl-Cl bond is 243 kJ/mol. Which of the following values might you expect for the C-Cl bond energy? Explain.

(a) 590 kJ/mol (sum of the values given)

(b) 104 kJ/mol (difference of the values given)

(c) 295 kJ/mol (average of the values given)

(d) 339 kJ/mol (greater than the average of the values given)

Use the octet rule to predict the formula of the simplest compound formed from hydrogen and (a) selenium, (b) arsenic, and (c) silicon. (Remember that the valence shell of hydrogen can hold only two electrons.)

Is the H-O bond in water nonpolar covalent, polar-covalent, or ionic? Define each term, and explain your choice.

Which is the more polar bond in each of the following pairs from Problem 9.61: (a) or (b); (c) or (d); (e) or (f)?

How is the partial ionic character of a bond in a diatomic molecule related to 螖贰狈 for the bonded atoms? Why?
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