Choose the incorrect statements from the following:

(A) The dipole moment of cyclohexyl chloride is smaller than chlorobenzene.
(B) Alkyl halides are immiscible with water.
(C) The dipole moment of methyl chloride is higher than that of methyl fluoride.
(D) Chloroform renders aerial oxidation in the presence of oxygen

Choose the correct answer from the options given below:

(A), (C) and (D) only

The correct answer is Option (4) → (A), (C) and (D) only

Core Concept:

Dipole moment depends on bond polarity and molecular structure, while chloroform itself undergoes aerial oxidation rather than causing it.

Option (A)

Incorrect because in chlorobenzene, resonance between the benzene ring and the chlorine atom reduces the polarity of the C–Cl bond, lowering its dipole moment. In cyclohexyl chloride, such resonance is absent and the C–Cl bond remains more polar, giving it a higher dipole moment than chlorobenzene.

Option (B)

Correct because alkyl halides are largely nonpolar and cannot form strong hydrogen bonds with water molecules, making them generally immiscible in water.

Option (C)

Incorrect because fluorine is more electronegative than chlorine, resulting in a more polar C–F bond in methyl fluoride, which gives it a higher dipole moment compared to methyl chloride.

Option (D)

Incorrect because chloroform does not cause aerial oxidation; instead, it undergoes oxidation in the presence of oxygen and light to form phosgene (COCl₂), which is toxic.