Logo : organicmystery.com Online Organic Chemistry Tutorial

Haloalkanes and Haloarenes Conceptual Questions

«Previous Next »
Question : Explain why neopentyl chloride cannot be prepared by the action of HCl on neopentyl alcohol.
Question : Explain why thionyl chloride method is preferred over hydrogen chloride or phosphorus pentachloride method for the preparation of chloroalkanes.
Question : Why does fluorination of hydrocarbons with pure F2 gas occur explosively?
Question : Iodination of methane is reversible. Explain why.
Question : Direct iodination of aromatic hydrocarbons is not useful. why?
Question : Why do alkyl iodides on standing become violet or brown?
Question : Haloarenes are insoluble in water but soluble in benzene. Explain.
Question : p-Dichlorobenzene has higher melting point and lower solubility than those of o- and m-isomers. Explain.
Question : Alkyl halides give alkyl cyanides with KCN but alkyl isocyanides with AgCN. Explain.
Question : Haloalkanes react with KNO2 to form alkyl nitrites while AgNO2 forms nitroalkanes as the chief product. Explain.
Question : The treatment of alkyl chloride with aqueous KOH leads to the formation of alcohols but in the presence of alcoholic KOH, alkenes are the major products. Explain.
Question : Wurtz reaction fails in case of tertiary alkyl halides. Explain.
Question : Allyl chloride is hydrolyzed more readily than n-propyl chloride. Explain.
Question : Vinyl chloride is hydrolyzed more slowly than ethyl chloride. Explain.
Question : Haloalkanes undergo nucleophilic substitutions whereas haloarenes undergo electrophilic substitutions. Explain.
«Previous Next »