Quick Answer: What Is The General Formula Of Alkene?

Why are alkanes unreactive?

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.

Alkanes are the typical ‘oils’ used in many non-polar solvents and they do not mix with water..

What are the 20 alkanes?

Terms in this set (20)Methane. Ch4.Ethane. C2H6 (CH3CH3)Propane. C3H8 (CH3CH2CH3)Butane. C4H10 (CH3(CH2)2CH3)Pentane. C5H12 (CH3(CH2)3CH3)Hexane. C6H14 (CH3(CH2)4CH3)Heptane. C7H16 (CH3(CH2)5CH3)Octane. C8H18 (CH3(CH2)6CH3)More items…

Are alkanes flammable?

Alkanes: Physical Properties At roomtemperature, alkanes from to are gases, from to they are liquids and higher alkanes are solids and waxlike to some extent . … Lower alkanes in particular are highly flammable and form explosive mixtures (methane, benzene) with air (oxygen). Solubility of alkanes in water is very low.

How are alcohols named?

In the IUPAC system, alcohols are named by changing the ending of the parent alkane name to -ol. Alcohols are classified according to the number of carbon atoms attached to the carbon atom that is attached to the OH group.

What is the general formula of alkane and alkene?

Alkanes have the general formula of CnH2n+2 where n is the number of carbon atoms. Alkenes have the general formula CnH2n. The general formula for alkynes is CnH2n-2. Acetylene is the simplest alkyne with the formula as C2H2.

What is the general formula of alkane?

In an alkane, each carbon atom is sp3-hybridized with 4 sigma bonds (either C–C or C–H), and each hydrogen atom is joined to one of the carbon atoms (in a C–H bond)….Table of alkanes.AlkaneEthaneFormulaC2H6Boiling point [°C]−89Melting point [°C]−183Density [kg/m3] (at 20 °C)1.26 (gas)24 more columns

What is general formula of aldehyde?

dehydrogenatus =dehydrogenated], any of a class of organic compounds that contain the carbonyl group , >C=O , and in which the carbonyl group is bonded to at least one hydrogen; the general formula for an aldehyde is RCHO, where R is hydrogen or an alkyl or aryl group.

How do we name alkanes?

The names of all alkanes end with -ane. … Alkanes with unbranched carbon chains are simply named by the number of carbons in the chain. The first four members of the series (in terms of number of carbon atoms) are named as follows: CH4 = methane = one hydrogen-saturated carbon.

What are the first 10 alkenes?

List of AlkenesEthene (C2H4)Propene (C3H6)Butene (C4H8)Pentene (C5H10)Hexene (C6H12)Heptene (C7H14)Octene (C8H16)Nonene (C9H18)More items…

What are the first 10 alkynes?

Here are the molecular formulas and names of the first ten carbon straight chain alkynes….Introduction.NameMolecular FormulaEthyneC2H2PropyneC3H41-ButyneC4H61-PentyneC5H85 more rows•Jun 5, 2019

What is the general formula for alcohols?

The general molecular formula for alcohols is CnH2n+1OH. Alcohols are all derivatives of hydrocarbons in which one or more of the hydrogen atoms in the hydrocarbon have been replaced by a hydroxyl group.

Why are alkanes called paraffins?

Saturated hydrocarbons are called paraffins, a name derived from the Latin parum affinis, which means slight affinity. Paraffins or alkanes are trace constituents of biological lipids, but alkanes are the most stable and abundant hydrocarbon constituents of terrestrial rocks.

What is difference between alkane and alkene?

The alkanes are saturated hydrocarbons—that is, hydrocarbons that contain only single bonds. Alkenes contain one or more carbon-carbon double bonds.

Is Whiskey acidic or basic?

The fact that beer and other alcoholic beverages have a low pH does not mean that they are bad for you unless they are consumed in excess. The pH of wine is commonly between 3.0 and 4.0. Whiskey is about 4.0.

What is the general formula for the alkene homologous series?

The general formula for the homologous series of alkenes is CnH2n where n is the number of carbon atoms. Because alkenes are hydrocarbons with at least one carbon-carbon double bond the alkene homologous series starts at ethene C2H4.

What is a alkene?

Alkenes are a homologous series of hydrocarbons that contain a carbon-carbon double bond. The number of hydrogen atoms in an alkene is double the number of carbon atoms, so they have the general formula. … Alkenes are unsaturated, meaning they contain a double bond .

How do you identify a homologous series?

Homologous series in organic chemistry are groups of molecules that have the same basic structure, including the same functional group. They only differ in the number of methylene (CH2 ) groups. The chemical properties of homologous series are similar because they have the same functional group.

Are alkanes a homologous family?

The alkanes are a homologous series of hydrocarbons . This means that they have similar chemical properties to each other and they have trends in physical properties. The general formula means that the number of hydrogen atoms in an alkane is double the number of carbon atoms, plus two. …

Are alcohols acidic or basic?

With a pKa of around 16–19, they are, in general, slightly weaker acids than water. With strong bases such as sodium hydride or sodium they form salts called alkoxides, with the general formula RO− M+. The acidity of alcohols is strongly affected by solvation. In the gas phase, alcohols are more acidic than in water.