Haloalkane का IUPAC नामकरण|समावयवता|हैलोऐल्केन बनाने की विधियाँ|Halogenation of alkane|Iodination|Alkene पर Hydrogen halide (HX) के योग से|Addition to Unsymmetrical alkenes

हाइड्रोकार्बन |IUPAC नामकरण तथा समावयवता -प्रश्न |ऐलकेन के निर्माण की विधियाँ -उदाहरण सहित |महत्वपूर्ण प्रश्न |Summary

Why are hydrogen halides and not halogen acids preferred for preparing haloalkanes from alkenes?

ऐमीन|ऐमीन का नामकरण|ऐमीन का समावयवता|ऐमीन बनाने की सामान्य विधियाँ|ऐमीन का भौतिक गुण|ऐमीन की महत्वपूर्ण अभिक्रियाएं

When haloalkanes with beta -hydrogen atom are boiled with alcoholic solution of KOH, they undergo elimination of hyarogen halide resulting in the formation of alkenes. These reactions are called beta -elimination reactions or dehydrohalogenation reactions. These reactions follow Saytzeff's rule. Substitution and elimination reactions often compete with each other. Mostly bases behave as nucleophiles and therefore can engage in substitution or elimination reactions depending upon the alkyl halide and the reaction conditions. 1-Bromo-1-methylcyclohenxane in prenece of alcoholic KOH gives which of the following IUPAC major product

When haloalkanes with beta -hydrogen atom are boiled with alcoholic solution of KOH, they undergo elimination of hyarogen halide resulting in the formation of alkenes. These reactions are called beta -elimination reactions or dehydrohalogenation reactions. These reactions follow Saytzeff's rule. Substitution and elimination reactions often compete with each other. Mostly bases behave as nucleophiles and therefore can engage in substitution or elimination reactions depending upon the alkyl halide and the reaction conditions. 3-Bromo-2,2,3-trimethylpentane in prenece of alcoholic KOH gives which of the following IUPAC major product

The alkenes have pi -bonds which make them highly reactive. These undergo electrophilic addition reactions, Addition of HX to unsymmetrical alkenes gives two products and follow Markovnikov rule and anti- Markovnikov rule. The addition occure through the formation of carbocation in Markovnikov rule and free radicals in anti-Markovnikov zule. The ozonolysis reaction of alkenes helps to locate the position of double bond. Ozonolysis of an alkene 'A' followed by decomposition with water and a reducing agent gave a mixture of two isomers of the formula C_(3)H_(6)O . Give the structure of the alkene and its IUPAC name.

Read the passage given below and answer the following questions: Alkyl/Aryl halides may be classified as mono, di or polyhalogen compounds depending on one, two or more halogen atoms in their structures. Alkyl halides are prepared by free radical halogenation of alkanes, addition of halogen acids to alkenes and replacement of -OH group of alcohols with halogens using phosphorus halides, thionyl chloride or halogen acids. Aryl halides are prepared by electrophilic substitution to arenes. The following questions are multiple choice questions. Choose the most appropriate answer: Which of the following is halogen exchange reaction ?

Read the passage given below and answer the following questions: Alkyl/Aryl halides may be classified as mono, di or polyhalogen compounds depending on one, two or more halogen atoms in their structures. Alkyl halides are prepared by free radical halogenation of alkanes, addition of halogen acids to alkenes and replacement of -OH group of alcohols with halogens using phosphorus halides, thionyl chloride or halogen acids. Aryl halides are prepared by electrophilic substitution to arenes. The following questions are multiple choice questions. Choose the most appropriate answer: Arrange the following compounds in increasing order of their boiling points. (i)