Question

Алканы не могут вступать в реакцию а. Замещения б. Изомерезация в. Присоединение г. Элиминирования

Answer 1

В) присоединение .  алканы вступают только в реакции:замещения, термического превращения, изомеризации, горения, отщепления.... а реакции полимеризации характерны для ненасыщенных углеводородо, таких как алкены, алкины, диены

Answer 2

Alkanes and Their Reactivity

Alkanes, a type of hydrocarbon, are known for their limited reactivity due to their stable and saturated structure. Let's explore the various aspects of their reactivity:

A. Inability to Undergo Reactions: Alkanes are generally unreactive and do not readily undergo many of the typical organic reactions due to the strength of the carbon-carbon and carbon-hydrogen single bonds. This stability makes them resistant to many chemical transformations.

B. Substitution Reactions: One of the primary reactions alkanes can undergo is substitution, where one or more hydrogen atoms are replaced by other atoms or groups. For example, in the presence of chlorine, alkanes can undergo a substitution reaction to form alkyl halides.

C. Isomerization: Alkanes can undergo isomerization, a process where the arrangement of atoms within the molecule is altered, leading to the formation of isomers. Isomerization can occur under specific conditions and is an important aspect of alkane reactivity.

D. Addition Reactions: Alkanes are generally not prone to addition reactions due to their saturated nature. Addition reactions typically involve the addition of atoms or groups to unsaturated compounds, which alkanes lack due to their fully saturated carbon-carbon bonds.

E. Elimination Reactions: Alkanes do not typically undergo elimination reactions, which involve the removal of atoms or groups from a molecule to form a double bond or a ring structure. This is due to the absence of functional groups or unsaturation in alkanes.

In summary, alkanes exhibit limited reactivity, primarily undergoing substitution reactions and isomerization while being resistant to addition and elimination reactions due to their stable and saturated structure.

Would you like to delve deeper into any specific aspect of alkane reactivity or related topics?