Why are alkenes unreactive?
Alkenes are relatively stable compounds, but are more reactive than alkanes because of the reactivity of the carbon–carbon π-bond.
Because the carbon-carbon π bond is relatively weak, it is quite reactive and can be easily broken and reagents can be added to carbon..
Why are alkanes unreactive but compounds with functional groups are reactive?
Alkanes are usually unreactice because of the bonds which it forms. … Alkanes are generally unreactive. Alkanes contain only C–H and C–C bonds, which are relatively strong and difficult to break. The similar electronegativities of carbon and hydrogen give molecules which are non-polar.
Are alkanes very reactive?
Alkanes are not very reactive when compared with other chemical species. These four bonds formed by carbon in alkanes are sigma bonds, which are more stable than other types of bond because of the greater overlap of carbon’s atomic orbitals with neighboring atoms’ atomic orbitals. …
Are alkanes flammable?
In general, alkanes show a relatively low reactivity. … Lower alkanes in particular are highly flammable and form explosive mixtures (methane, benzene) with air (oxygen). Solubility of alkanes in water is very low.
Why are alkanes flammable?
Answer and Explanation: Hydrocarbons are flammable because the carbon in their structure is in the most reduced form. This makes the carbon very reactive because it is…
What properties do alkanes have?
Physical Properties of Alkanes:Alkanes are colourless.Alkanes are less dense than water (alkanes float on top of water).Alkanes are non-polar molecules so they are more soluble in non-polar solvents than they are in polar solvents.More items…
Why are alkanes not reactive?
Alkanes are not very reactive when compared with other chemical species. This is because the backbone carbon atoms in alkanes have attained their octet of electrons through forming four covalent bonds (the maximum allowed number of bonds under the octet rule; which is why carbon’s valence number is 4).
Are alkanes reactive or unreactive?
12.1: Alkanes Are Unreactive Compounds. The alkanes and cycloalkanes, with the exception of cyclopropane, are probably the least chemically reactive class of organic compounds. Alkanes contain strong carbon-carbon single bonds and strong carbon-hydrogen bonds.
Are alkanes toxic?
Cycloalkanes are more toxic than alkanes or branched alkanes . In humans, high concentrations of inhaled alkanes can result in anesthetic effects or narcosis . Alkanes are CNS depressants . … However, high molecular weight alkanes are considered virtually non toxic .