Question

The bond lengths of the C-X bonds in CF4, CC14, and Cl4 are 1.32, 1.77, and 2.15 Å, respectively. Estimate the length of the C-Br bond in CBr4. Which of these four halides has the strongest C-X bond? Estimated C-Br bond length = Strongest C-X bond in AL A?

Answer 1

→ Partial positive charge on Carbon partial negative charge on Flourine. So, the C-F bond shows partial ionic character. They have Electrostatic attractions between them. so, it will be difficult to break the bond. ..(-F bond is strong.

A. Given bond length of are 1.32, 1.77 and Generally, we know cox bonds in (Fu , ccde, (Iu 8.15 A°. bond length = sum of covalent radii of two atoms bonded we know, C Covalent radius of and Covalent radius of Then, bond length of Carbon = 0.77 A° Bromine=1.17 A C-Br = (0.77 +1.17) Aº = 1.944°. . .. Estimated bond length of C-Br = 1.94A. Among 6- f c-d, c-Br, c-I bonds C-F bond is the strongest. It requires more energy to break the bond. Because , c-f bond is shorter , means two atoms will be very closer, and in c-F, they show Partial charges on Carbon and Flourine.