Q. What is the name of CH2 CH CH CH2?
=> 1, 4 – di- butene .
Q. What is the Iupac name of alkene CH3 CH2 CH is equal to CH 2?
The IUPAC name of CH3 – CH2 – CH2 – CH=CH2 is Pent-1-ene.
Q. What is the name of this compound CH 3 CH 2 CH 2 CH 2 CH 3?
The compound CH3CH=CHCH2CH3, for example, has the double bond between the second and third carbon atoms….13.2: Alkenes: Structures and Names.
| IUPAC Name | ethene |
|---|---|
| Molecular Formula | C2H4 |
| Condensed Structural Formula | CH2=CH2 |
| Melting Point (°C) | –169 |
| Boiling Point (°C) | –104 |
Q. What is the Iupac name for CH 3 CH 2 CH 2 SH?
Classification of Alcohols
| Condensed Structural Formula | Class of Alcohol | IUPAC Name |
|---|---|---|
| CH3CH2CH2OH | primary | 1-propanol |
| (CH3)2CHOH | secondary | 2-propanol |
| CH3CH2CH2CH2OH | primary | 1-butanol |
| CH3CH2CHOHCH3 | secondary | 2-butanol |
Q. Can alkenes have two double bonds?
Dienes are alkenes with 2 double bonds. IUPAC: Same as alkene, but change -ene to -adiene and use two numbers to locate the two double bonds (number from the end of the chain which makes the smaller of these numbers smaller). Compounds containing two carbon-carbon cumulated double bonds are called allenes.
Q. What if there are two double bonds?
Two double bonds on one carbon are said to be cumulated. If the double bonds are separated by just a single bond, as in 1,3-pentadiene, they are said to be conjugated, and conjugated double bonds can sometimes modify the course of alkene reactions.
Q. Do alkynes have double bonds?
Alkenes are hydrocarbons that contain one or more double bonds, while alkynes contain one or more triple bonds. The naming conventions for these compounds are similar to those for alkanes.
Q. What is C triple bond called?
Alkynes are organic molecules made of the functional group carbon-carbon triple bonds and are written in the empirical formula of CnH2n−2.
Q. Does double bonds take priority?
Answer: When a molecule has both a double and triple bond the carbon chain is numbered to give the lowest possible numbers. Meaning double and triple bonds have equal priority.
Q. What are the first four alkenes?
13.1: Alkenes- Structures and Names
| IUPAC Name | Molecular Formula | Condensed Structural Formula |
|---|---|---|
| 1-butene | C4H8 | CH2=CHCH2CH3 |
| 1-pentene | C5H10 | CH2=CH(CH2)2CH3 |
| 1-hexene | C6H12 | CH2=CH(CH2)3CH3 |
| 1-heptene | C7H14 | CH2=CH(CH2)4CH3 |
Q. Are all alkanes straight chain?
Naming and writing structural and molecular formulas for the straight-chain alkanes is straightforward. The name of each alkane consists of a prefix that specifies the number of carbon atoms and the ending -ane….Alkanes.
| Name | Molecular Formula | Condensed Structural Formula |
|---|---|---|
| Decane | C10H22 | CH3CH2CH2CH2CH2CH2CH2CH2CH2CH3 |
Q. Why are carbon chains not straight?
Because of the sp3 hybridization, the bond angles in carbon chains are close to 109.5°, giving such chains in an alkane a zigzag shape.
