Haloalkanes and halo arenes practice · Medium

Option C is correct because Alkyl fluorides can be prepared by treating alkyl chlorides with AgF (Swarts reaction), making the assertion true, but the reason is false because Swarts reaction *is* used to prepare alkyl fluorides.

The correct answer is A ($\mathrm{C}{\mathrm{H}_3} - \mathrm{\;C}{\mathrm{H}_2}\mathrm{\;}\left( {\mathrm{OH}} \right)$) because compounds with the $CH_3CH(OH)-$ or $CH_3C(O)-$ group give a positive iodoform test.

Option A (Diphenyl) is correct because Ulmann's reaction is a coupling reaction specifically used to synthesize biaryls, such as diphenyl, from aryl halides using copper.

Option C (Phosgene) is correct because chloroform, in the presence of light and air, undergoes oxidation to form phosgene (carbonyl chloride), a poisonous gas.

Option B (2,1) is correct because chlorination is less selective, leading to two possible products, while bromination is highly selective, resulting in only one major product.