ORGANIC CHEMISTRY
A carboxylate group consists of the carboxyl group minus the hydrogen ion
A combination of atoms that confers certain chemical and physical properties on a compound is a(n) functional group.
A cycloalkane consists of a ring of carbon atoms with two hydrogen atoms connected to every carbon atom.
A non-aliphatic hydrocarbon. Toluene.
A polynuclear aromatic hydrocarbon is made by fusing together at least. two benzene rings.
A process in Which rubber is treated with sulfur to improve its properties vulcanization.
A reaction in Which atoms or groups are removed from adjacent atoms to form a double or triple bond. Elimination.
A rxn in which the elements of water are eliminated from a molecule.
Dehydration
A saturated hydrocarbon. Alkane
A soap molecule has a nonpolar end and a polar end.
Accdg to Markovnikoff's rule, addition of HBr tp 2-pentene will give both a and c.
Aldehydes may be prepared by oxidizing primary alcohols.
All these about redox are correct except the total number of the electrons lost by the element reduced is equal to the total number of electrons gained by the element oxidized.
An acid found in citrus fruits is citric acid
An aldehyde used as a preservative and a germicide is formaldehyde
An instrument used to det. the effect of polarized light as it passes. through the material being tested. polariscope
Another name for vitamin B6. pyridoxine.
Bayer's test is test for unsaturation
Benzene undergoes substitution reactions rather than addition reactions
because its ring structure is very stable.
Burning of polyacrylonitrile (Orlon) generates HCN.
Burning of polyvinyl chloride generates HCl.
Butyric acid is found mainly on rancid butter.
Calcium carbide on interaction with water gives acetylene.
Carboxylic acids and amides have in general higher boiling points than esters and anhydrides because of which property. hydrogen bonding Classified as aromatic compound.carbolic acid.
Dacron is a polyester.
Denatured alcohol refers to ethyl alcohol that has been treated with something to make it unfit to drink.
Each bond in a benzene molecule is considered more than a single bond, less than a double bond.
Esters are formed from condensation reactions between. alcohols and acids (carboxylic acids).
Ethylene on interaction with alkaline potassium permanganate (Baeyer's reagent) gives glycol.
Ethylene readily undergoes the following type of reaction addition.
Fermentation of carbohydrates leads to the formation of ethanol.
HCl reacts vigorously with this compound to form PVC. ethyne How many atoms are there in a molecule of naphthalene. 18
How many different isomers of pentane are there. three (see HB)
How many sigma bonds are there in ethylene. more than 3
Hydrogen bonding may form by the attraction between the oxygen part of one water molecule to the hydrogen part of another water molecule. If an aldehyde is placed in a Benedict's solution, it reacts to form cuprous oxide and an acid.
If we add Cl₂ to 1-butene, what is the product. CH3CH2CHCLCH2CL
In a substance containing aldehyde, under Tollen's test, what would be expected result to confirm its positivity. silvery mirror
In chemical rxns involving alkenes, halogen atoms can replace hydrogen atoms. these rxns are called. dehydrogenation
In most fatty acids, the carbon atoms are arranged in a straight chaiin, with a carboxylic group at one end.
It denotes a situation in Which atoms are linked together in the same order (head-to-tail) but differ in their spatial arrangement. stereoisomerism
It involves the removal of hydrogen from carbon-oxygen single bond or insertion of oxygen in a molecule. Oxidation.
It is an addition rxn initiated by an electron-deficient species. electrophilic
It is obtained from the milky secretion of various plants such as the hevea brasiliensis natural rubber.
Lemon is sour due to the presence of citric acid
Methane on oxidation with oxygen gives methanol.
Milk is sour when kept in the open for some time due to the formation of lactic acid.
Millions of organic compounds but only thousands of inorganic compounds because. carbon atoms can combine with up to ofur other atoms including other carbon atoms.
Monomer unit for Teflon is tetrafluoroethylene.
Most soluble in water. Methanol
Name the compound CH3(CH2)6COOH. octanoic acid
CH3CH2CH2CH2CH2C-CH2CH2CH3-
Name this compound:
HCH2CH2CH3 4-propyl nonane
Natural rubber is polyisoprene.
nylons are polyamides.
Of the ff., which are the most reactive. alkynes (2 pi bonds)
Of Which straight chain alkane is the structure in problem 16 an isomer. dodecane
One mole of an alkane reacts with excess O₂ to give 7 moles of H2O. the alkane could be hexane 140. one mole of an alkane reacts with excess O2 to give 7 moles of H2O. also generated from the same alkane are moles of CO2 6.
One of the best fuel that detonates only at high temperature is isooctane.
Which of the ff is a chlorofluorocarbon. CFC13
Oxides that react with water to form acids or that are formed by the removal water from acids, are known as acid anhydride.
Penicillin was discovered by flemming.
Pentane and isopentane are what type of isomers. structural
Petroleum is belived to have formed mostly from the anaerobic decomposition of buried plankton and algae.
Retinal, retinol and retinoic acid are stable form of vitamin A.
Saponification is a reaction in which a triacylglycerol reacts with a strong base to form glycerol and three soap molecules.
Secondary alcohol when undergoes oxidation forms ketone.
Styrene is vinyl benzene
Teflon that is commonly used in cooking utensils and insulation is made up of what monomer. tetrafluoroethylene
Tetraethyl lead is added to petrol to increasing anti-knock rating.
The acid found in ants formic acid.
The alcohol present and in alcoholic beverages is ethanol.
The alkane containing a total of 20 hydrogen atoms must be an isomer of nonane.
The formation of disulfides through oxidation of two thiols is important
for maintaining the structure of protein.
The hybridization of carbon 3 in 2-hexene is s * p ^ 2
The least number of atoms in alkynes is 4 50.
The molecular formula for 2-methylhexane is C_{7}*H_{16}
The most characteristic rxns of alkenes are addition reactions
The name of the compound was incorrectly written as 2-methyl-4-hexene. its correct name is 5-methyl-2-hexene.
The process to transform long chain hydrocarbon into small chains cracking.
The product obtained by the fermentation of wet cellulose is methane. The product obtained from the hydrolysis of collagen is gelatin.
The rule Which states that, "in the addition of HX to alkenes, the halogen attaches to the doubly bonded carbon with more alkyl substituent." Markovnikoff's Rule
The saponification number of a triglyceride is 200. its average MW is 200.
the small molecule starting materials from Which polymers are constructed are called monomers.
The type of reaction benzene undergoes is electrophilic substitution. If each of the ff is an alkane, Which one must be cyclic. C_{7}*H_{14}
Tobacco smoke contains nicotine.
Tollen's test is for the presence of aldehydes
Used to measure the tendency of the fuel to knock octane no.
What class of compounds is represented by the formula ROR. ethers
What is the functional group linking the segments of nylon. amide Plasticizers are molecules that confer pliability on otherwise brittle polymers.
What is the major product from an elimination reaction starting with 2-bromopentane. trans-2-pentene
What is the name of 2 optically active molecules that are mirror images of each other. enantiomers
When alcohol is dehydrated, it forms an alkene
When an alkane reacts with B*r_{2} two products are obtained: a bromoalkane and HBr
When an ester is hydrolyzed, the end products are an acid and an alcohol
When an ether oxidizes, it forms a peroxide
When ingested, ethanol acts as a depressant.
When methane is heated in the absence of air or oxygen, it breaks up to give carbon and hydrogen. the process is named as pyrolysis
Which among the ff is a ketone. CH3COCH3
Which has the most number of carbon atoms: trichloromethane,
dichloromethane, chloromethane, all the same
Which molecule has the most negative heat of combustion. butane
Which of the ff aromatic compounds is the oil of wintergreen. methyl salicylate
Which of the ff can exist as geometric isomers. CHBr=CHCL
Which of the ff compounds have not been used as plasticizers vinyl chloride
Which of the ff does not contain a c=o, methanol
Which of the ff is a primary alcohol. 1-propanol
Which of the ff is an isomer of cis-2-pentene. Cyclopentane
Which of the ff is expected to have the highest boiling point. Ethanamide
Which of the ff is expected to react fastest with an oxidizing agent. 1-hexanol
Which of the ff is known as Freon. CCl₂F2
Which of the ff is not a derivative od-f carboxylic acid. amine
Which of the ff is used in making water pipes, rain coats and shower curtains. PVC 138.
Which of the ff is used in non-sticking frying pans and other cooking wares. Teflon
Which of the ff is used to make silicone rubber. trihydroxymethyl silane
Which of the ff method is used in the preparation of methane. by heating
sodium acetate with soda lime
Which of the ff molecules cannot exist. 1,1-dichloroethyne
Which of the ff polymer is used in making styrofoams, disposable cups, forks, spoons and food containers. PS 137.
Which of the ff structure represents that of vinyl chloride. C2H3CL89.
Which of the ff will distinguish 1-propanol from 2-propanol. Lucas' test
Which of the ff will react fastest with Bromine. C_{5}*H_{8}
Which of the ff will react with an alkyne to give a disubstituted alkene. Br2
Which of the ff would you expect to have the highest boiling point. oxalic acid
Which of the ff. is an isomer of ethanol. dimethyl ether
Which of the ff. is not a paraffin compound. ethane
Which of the ff. would be expected to be least soluble in water. decanol
Which of the following involve redox reactions. burning of gasoline
Which of the following is a secondary amine. dipropylamine
Which of the following is an isomer of heptane. 3-ethylpentane
Which of the following molecules is unsaturated. Penten
Which statements about enantiomers is false. enantiomers have the same
three dimensional orientation
Williamson's synthesis is used to prepare diethyl ether.
Wood alcohol is the same as methanol.