Chem: chapter 12, 13, & 14
what is the structure of 2-methylhexane?
(CH 3)2CHCH2CH2CH2CH3
Which alcohol is most soluble in water? - (CH3)2CHCH2OH - CH3CH2CH2CH2CH2CH2CH2OH - CH3(CH2)10CH2OH - All alcohols are soluble
(CH3)2CHCH2OH
what is the structure of 2-methyl-3-hexene
(CH3)CHCH=CHCH2CH
How many different products are formed in the reaction of p-dibromobenzene with Cl2, using FeCl3 as a catalyst?
1
How many tertiary carbons are in the molecule (CH3)2CH(CH2)2CH3?
1
Which name is not a valid IUPAC name for an alkane? 2,3,4-trimethylhexane - 1-ethyl-2-butylpentane - 1-butyl-2-ethylcyclopentane - 5-butyl-2-methylnonane
1-ethyl-2-butylpentane
How many hydrogen atoms are present in a cyclic alkane with six carbon atoms?
12
How many hydrogen atoms are present in an acyclic alkane with five carbon atoms?
12
How many primary carbon atoms are in the straight-chain alkane with the formula C3H8?
2
How many secondary carbons are in the molecule (CH3)2CH(CH2)2CH3?
2
How many secondary carbons are in the straight-chain alkane with the formula C4H10?
2
What is the IUPAC name for the compound CH3CH=CHCH2CH3?
2-pentene
How many different products are formed in the reaction of m-dibromobenzene with Cl2, using FeCl3 as a catalyst?
3
Which is the molecular formula of an alkyne? - C10H18 - C9H18 - C8H18 - C10H20
C10H18
Which formula represents a cyclic alkane?
C10H20
Which formula represents an acyclic alkane?
C12H26
Which molecular formula has the largest number of constitutional isomers? C5H12 - C2H6 - C6H14 - All of the molecular formulas above have the same number of constitutional isomers
C6H14
Which fatty acid has the highest melting point? - CH3(CH2)12COOH - CH3(CH2)2CH=CH(CH2)8COOH - CH3(CH2)2CH=CH(CH2)2CH=CH(CH2)4COOH - CH3(CH2)14COOH
CH3(CH2)14COOH
Which fatty acid has the lowest melting point? - CH3(CH2)12COOH - CH3(CH2)2CH=CH(CH2)8COOH - CH3(CH2)2CH=CH(CH2)2CH=CH(CH2)4COOH - CH3(CH2)14COOH
CH3(CH2)2CH=CH(CH2)2CH=CH(CH2)4COOH
Which compound has the highest boiling point? - CH3(CH2)4CH2OH - CH3(CH2)2O(CH2)2CH3 - CH3(CH2)5CH3 - all of the compounds have the same boiling point
CH3(CH2)4CH2OH
Which compound has the lowest melting point? -CH3CH2CH2CH2CH3 -CH3CH2CH2CH2CH2CH2CH2CH3- -CH3CH2CH2CH2CH2CH3 -CH3CH2CH2CH2CH2CH2CH2CH2CH2CH3
CH3CH2CH2CH2CH3
What reagent is commonly used for alcohol dehydration?
H2SO4
IUPAC stands for
International Union of Pure and Applied Chemistry
Which types of compounds are saturated by hydrocarbons?
alkenes
What is the shape around the oxygen atom in alcohol?
bent
What is the IUPAC name of CH3CH2CH2CH3?
butane
CH3CH2CH2CH2
butyl
what configuration of a double bond is more common in naturally occurring fatty acid? - cis - trans - both
cis
the compounds 1-pentene and cis-2-pentene are an example of a pair of
constitutional isomers
Which alkane has the lowest boiling point out of octane - butane - ethane - hexane - propane
ethane
CH3CH2
ethyl
(TorF) A branched alkane and a cycloalkane with the same number of carbons have the same number of hydrogen atoms in their chemical formulas
false
(TorF) Alkanes containing only secondary carbon atoms do not exist.
false
(TorF) All organic molecules must have at least one primary carbon atom
false
(TorF) Natural gas is composed primarily of propane
false
(TorF) The addition of water to an alkene is called a hydrogenation reaction
false
(TorF) acromatic hydrocarbons and alkenes undergo the same kind of addition reactions
false
(TorF) an organic compound is classified as aromatic if it is cyclic and has a fragrant odor
false
(TorF) fats are solids at room temp and are generally formed from fatty acids having a large number of double bonds in their carbon chains
false
(TorF) maokovnikov's rule is used to predict the addition products of benzene
false
(TorF) the common name for methylbenzene is aniline
false
(TorF) the double bonds in naturally occurring fatty acids are typically trans
false
(TorF) the following compound soluble in water: CH3CH2CH2CH2-O-CH2CH3
false
(TorF) when an alkene undergoes an addition reaction, new atoms replace the hydrogen atoms on the carbons that are part of the double bond
false
What is the IUPAC name of CH3CH2CH2CH2CH2CH3?
hexane
CH3CH2CH2CH2CH2CH2
hexyl
parent name
indicates the number of C's in the longes continuous carbon chain in the molecule
suffix
indicates what the functional group is present
What has the highest boiling point out of natural gases - lubricating oil - gasoline - kerosene - fuel oil
lubricating oil
CH3
methyl
The compounds o-chlorophenol and m-chlorophenol are examples of
molecules that are constitutional isomers
What is the product of the reaction 2-pentene + H2 --(Pd)-->> ?
pentane
CH3CH2CH2CH2CH2
pentyl
CH3CH2CH2
propyl
What does the IUPAC do
provides a system of naming organic compounds
the molecules cis-2-pentene and trans-2-pentene are an example of a pair of
stereoisomers
Which is NOT a property associated with tetradecane, a 14-carbon straight chain alkane? strong hydrogen bonds - density less than water - low water solubility - flammable liquid
strong hydrogen bonds
What is the functional group in thiols?
sulfhydryl group
prefix
tells the identity, location, and number of substituents attached to the carbon chain
(TorF) Acyclic alkanes with four or more carbon atoms have constitutional isomers.
true
(TorF) CO2 is a greenhouse gas
true
(TorF) Essential fatty acids cannot be synthesized by the human body and therefore must be obtained in the diet
true
(TorF) The combustion of alkanes and other hydrocarbons obtained from fossil fuels adds a tremendous amount of CO2 to the atmosphere each year.
true
(TorF) The products of the complete combustion of any hydrocarbon are CO2 + H2O, regardless of the identity of the starting material.
true
(TorF) an alkene has the general molecular formula CnH2n, where n is the number of carbons in the compound
true
(TorF) butter and lard are composed mostly of saturated fatty acids
true
(TorF) compounds containing two or more benzene rings that share carbon-carbon bonds are called polycyclic aromatic hydrocarbons (PAHs)
true
(TorF) ethers are organic compounds that have two alkyl groups bonded to an oxygen atom
true
(TorF) partial hydrogenation of soybean oil has the effect of decreasing the number of carbon-carbon double bonds in the oil
true
(TorF) phenols are antioxidants
true
(TorF) primary alcohols are first oxidized to aldehydes (RCHO), which are further oxidized to carboxylic acids (RCOOH)
true
(TorF) the compound 2,3-dimethyl-2-butene has cis and trans stereoisomers
true