Respuesta :
1)Â Â Check all correct statements concerning pentyne.
       a)  contains 5 carbons
       b)  has a triple bond
       c)  is an alkyne
2)Â Â Which statement is not true of alkenes?
       a)  They are more stable than alkanes.
3)Â Â Butene would have 4 carbon atoms and a ______ bond.
       a) Double Bond
4)Â Â Which type of reaction to alkenes generally undergo?
       a) Addition Reaction
5)Â Â If the carbon atom of hydrocarbon is bonded to less than 4 other atoms, the hydrocarbon is considered _______.
       a) Unsaturated
6)Â Â Which of the following apply to unsaturated hydrocarbons? Select all that apply.
       a)  They will react readily with other elements and compounds.
       b)  They have double and triple bonds.
7)Â Â A straight chain hydrocarbon with the formula C5H10:
       a)  has a double C-C bond
8)Â Â What is the general formula for alkenes?
       a)  CnH2n
9)Â Â Choose the statements about benzene that are correct.
       a)  All of the C-C bonds are actually identical.
       b)  The structure of the molecule is closed like a ring structure.
       a)  contains 5 carbons
       b)  has a triple bond
       c)  is an alkyne
2)Â Â Which statement is not true of alkenes?
       a)  They are more stable than alkanes.
3)Â Â Butene would have 4 carbon atoms and a ______ bond.
       a) Double Bond
4)Â Â Which type of reaction to alkenes generally undergo?
       a) Addition Reaction
5)Â Â If the carbon atom of hydrocarbon is bonded to less than 4 other atoms, the hydrocarbon is considered _______.
       a) Unsaturated
6)Â Â Which of the following apply to unsaturated hydrocarbons? Select all that apply.
       a)  They will react readily with other elements and compounds.
       b)  They have double and triple bonds.
7)Â Â A straight chain hydrocarbon with the formula C5H10:
       a)  has a double C-C bond
8)Â Â What is the general formula for alkenes?
       a)  CnH2n
9)Â Â Choose the statements about benzene that are correct.
       a)  All of the C-C bonds are actually identical.
       b)  The structure of the molecule is closed like a ring structure.
Explanation:
1) Pentyne is an unsaturated hydrocarbon with formula [tex]C_5H_8[/tex]. It is an alkyne molecule with single triple bond present in it.
Correct statements are:
- Contains 5 carbons
- Has a triple bond
- Is an alkyne
2) Alkenes are unsaturated hydrocarbons with double bonds.
- They are unsaturated.
- They are reactive.
- They have double bonds.
3) Butene is an unsaturated hydrocarbon with 4 carbon atoms and double bonds.
4)Alkene undergo addition reaction easily.
5)If the carbon atom of hydrocarbon is bonded to less than 4 other atoms, the hydrocarbon is considered unsaturated.
6)The correct statements are:
- They have double and triple bonds.
- They will react readily with other elements and compounds.
7)The general formula of :
Alkane = [tex]C_nH_{2n+2}[/tex]
Alkene = [tex]C_nH_{2n}[/tex]
Alkyne = [tex]C_nH_{2n-2}[/tex]
The [tex]C_5H_{10}[/tex] is an alkene with double C-C bond.
8) The general formula of alkene is given by: [tex]C_nH_{2n}[/tex]
9) Benzene is an aromatic cyclic compound with six membered carbon ring with alternative double bonds. Due to conjugation of double bond all the C-C bonds are identical.
- All C-C bonds share 2 pairs of electrons.
- All of the C-C bonds are actually identical.
- The structure of the molecule is closed like a ring structure.
