Mu = 4.delta times 5 times d (equation for calculating a bond dipole moment) The

Question

Mu = 4.delta times 5 times d (equation for calculating a bond dipole moment) The C = Cl bond has a larger dipole moment than the C - F bond because chlorine is more electronegative than fluorine (making its delta larger). fluorine is more electronegative than chlorine (making its delta larger). chlorine is larger than fluorine (making d larges). fluorine is larger than chlorine (making d larger). Which one of the following has the lowest boiling point? t-butyl chloride n-butyl chloride t-butyl iodide n-butyl iodide t-butyl iodide

Explanation / Answer

4.

C - Cl bond have larger dipole moment than C - F bond because

(c) chlorine is larger than fluorine ( making d larger.)

dipole momet depend on diffrence in electronegativity between two bonded atom as well as size of atom. F is more electronegative than Cl but Cl is larger than F therefore C - Cl bond have larger dipole moment than C - F bond.

5.

(a) t - butyl chloride has lowest boiling point.

boiling point of your given compound are given below

t - butyl chloride = 510C

n - butyl chloride  = 78 - 790C

t - butyl iodide  = 127 - 133 0C

n - butyl iodide  = 130 - 1310C

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