NEET Chemistry Preparation Methods MCQ Question
Which of the following statements about the preparation methods of haloalkanes and haloarenes is correct?
Aryl halides can be prepared by electrophilic substitution using chlorine and bromine with Lewis acids.
Haloalkanes can be prepared by passing dry hydrogen chloride gas through a solution of a primary aromatic amine.
Fluorinated compounds are commonly prepared by free radical halogenation of alkanes.
Aryl halides are formed easily from alkanes through free radical halogenation.
Correct Answer
Detailed Explanation
Statement A is correct as aryl halides can indeed be prepared by electrophilic substitution of arenes with chlorine and bromine in the presence of Lewis acids. Statement B is incorrect because primary aromatic amines do not undergo this reaction for haloalkane formation. Statement C is false since fluorinated compounds are not prepared this way due to fluorine's high reactivity. Statement D is incorrect because free radical halogenation primarily produces haloalkanes, not aryl halides.
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