question

The chemical formula of methanol is CH3OH. How many unshared electron pairs are associated with a molecule of methanol?

answer

2

question

In which of the following classes of organic compounds is an oxygen atom bonded to a hydrogen atom? -alcohols -amines -aldehydes -all of the above

answer

alcohols

question

Compounds which contains only carbon-carbon single bonds are classified as which of the following? - alkynes - alkenes - arenes - alkanes

answer

alkanes

question

Compounds which contain one or more benzene-like rings are classified as which of the following? - alkenes - alkynes - alkanes - arenes

answer

arenes

question

Which of the following is the formula for hexane? -c6h16 -C6H6 -C6H14 -C6H10

answer

C6H14

question

*#1 - image * What is the molecular formula for the following compound? - C7H16 - C8H18 - C8H17 - C6H16

answer

C8H18

question

*#2 - image* Which of the following compounds are constitutional isomers?

answer

all of them

question

*#3 - image* Which of the following line-angle structures is a 4-isopropyloctane?

answer

the fourth image D.)

question

*#4 - image* What is the IUPAC name of the following compound? - isopropylcyclohexane - 1-propylcyclohexane - propylcyclohexane - 1-propylhexane

answer

propylcyclohexane

question

*#5 - image* Which of the following line-angle formulas represents butane?

answer

the second image B.)

question

*#6 - image* Which of the listed products will be formed in the following reaction?

answer

the third option C.)

question

*#7 - image* Which alcohol is formed by the hydration of 2-methyl-2-pentene?

answer

the first one A.)

question

*#8 - image* What is the IUPAC name of the following compound?

answer

5-methyl-3-hexanol

question

Which of the following is the IUPAC name of isobutyl alcohol? a.) 1-butanol b.) 2-methyl-1-propanol c.) 2-methyl-2-propanol d.) 2-butanol

answer

2-methyl-1-propanol

question

Which of the following is the IUPAC name of tert-butyl alcohol? a.) 2-methyl-2-propanol b.) 1-butanol c.) 2-butanol d.) 2-methyl-1-propanol

answer

2-methyl-2-propanol

question

*#9 - image* Which of the following is obtained from the oxidation of isobutyl alcohol with potassium dichromate in aqueous sulfuric acid?

answer

the fourth one D.)

question

*#11 - image*Which of the following is obtainable by the oxidation of tert-butyl alcohol?

answer

the first one A.) neither a or b

question

If a carbon atom is a stereocenter, which of the following statements must be true about that carbon?

answer

it has four single bonds

question

Which of the 3 isomeric alcohols, 2-butanol, 2-methyl-1-propanol, and 2-methyl-2-propanol, are chiral?

answer

only 2-butanol

question

*#10 - image* How many stereocenters are present in the following compound?

answer

2

question

Which product is formed by the chlorination of 2-butene?

answer

the second one B.) 2,3-dichlorobutane

question

*#12 - image*What is the IUPAC name of the following compound? A.) 3-hydroxy-5-methylhexane B.) 5-methyl-3-hexanol C.) 2-methyl-4-hexanol D.) 4-hydroxy-2-methylhexane

answer

B.) 5-methyl-3-hexanol

question

*#13 - image* Which of the following structures represents 4-methycyclohexanol?

answer

the third one C.)

question

Which of the following is true of the alcohol function group 1,3-propanediol? a.) one is primary and one is secondary b.) both are primary c.) neither are primary d.) one is primary and one is tertiary

answer

c.) both are primary

question

*#14 - image* Which of the alcohols shown below will react when heated with concentrated sulfuric acid to give the following alkene as the major product?

answer

B.) both A and B

question

*#15 - image* Which of these compounds is obtained as the major product from the reaction of the following alkene with aquoeus sulfuric acid?

answer

the fourth one D.)

question

What is the smallest number of carbon atoms that can be present in an aldehyde?

answer

1

question

What is the smallest number of carbon atoms that can be present in a ketone?

answer

3

question

*#16 - image* What is the IUPAC name for the following compound? a.) 1-pentanal b.) pentanealdehyde c.) pentanal d.) 1-pentanealdehyde

answer

c.) pentanal

question

Draw the line structures for each of the following: a.) pentane b.) 2-methylhexane c.) 3,3 - diethylheptane d.) 4-ethyl- 2-methyloctane e.) propylcyclopentane f.) 2-heptyne g.) 2-methyl-1-pentene h.) 2,3-dimethyl-2-butene i.) butylbenzene

answer

answers: *#17 - image*

question

*#18 - image* Name the following compounds:

answer

a.) pentane b.) 3-ethylhexane c.) 2,2,7- trimethyl octane d.) 4-ethyl-2,2,-dimethyl heptane e.) cyclopentane f.) methyl-cycloheptane g.) 2-pentyne h.) trans-2-octene i.) 4-methylpentene j.) 2,5-dimethyl-3-heptyl k.) cyclopentene l.) *cis-6-dimethyl-7-methyl-3-octene* m.) *ethylbenzene* n.)hexane o.) 3,4-dimethyl heptane p.) propylcyclobutane

question

*#19 - image* Draw the structures of the products of each of the following reactants.

answer

answers: *#19 - image*

question

Draw the structures of each of the following compounds: a.) ethyl alcohol b.) 2-pentanol c.) cuclobutanol d.) isopropyl alcohol e.) 1-hexanol

answer

answers: *#20 - image*

question

*#21 - image* Name the following compounds:

answer

a.) methanol b.) 2-butanol c.) phenol d.) 3-octanol e.) cyclohexanol

question

*#22 - image* Are the two molecules constitutional isomers?

answer

a.) isomer b.) isomers c.) not isomers d.) isomers e.) not isomers f.) not isomers g.) not isomers h.) isomers i.) not isomers j.) not isomers k.) isomers

question

*#23 - image* Identify chiral atoms.

answer

answers: *#23- images*

question

If you dissolve 4.0 g of glycerol in enough water to make 100 ml of solution, will this solution be isotonic, hypertonic, or hypotonic?

answer

4.0 g / (92.09 g/mol) = # of moles # of moles = 0.013 moles Molarity = (0.043 mols / 1 liter) * 100 = *0.43 M* *Hypotonic because it is higher than 0.28 M which of isotonic *

question

A solution contains 2.5 g of ethanol in water to give a total volume of 75 mL. Express the concentration as: a.) a percent concentration (w/v) b.) a molarity

answer

a.) (2.5 g / 75 mL) * 100 = *3.3% w/v* ---- b.) # of moles = (2.5 g / 46 g ) = 0.05 mol (0.05 mol / 0.075 mL) * 1000 = *0.72 M*

question

Ethanol is used in some rubbing alcohol formulas, because it can evaporate readily and cools the skin. The specific heat of ethanol is 0.58g/cal, and the heat of evaporation is 201 cal/g. a.) how much heat is needed to raise the temperature of 25 g of ethanol from 20'C to 37'C? b.) how much heat is needed to evaporate 25 g of ethanol?

answer

a.) 17'C * 25 g * 0.28 cal/g = *246.5 cal* ---- b.) 25 g * 201 cal/g = *5,025 cal*

question

*#24 - image* Name the following compounds:

answer

a.) 4-octanone b.)butanoic acid c.) hexanal d.) cycloheptanone e.) 3-hexanone f.) propanoic acid g.) hexanal

question

*#25 - image* Give the trivial names of the following:

answer

a.)formaldehyde b.) acetone c.)acetic acid

question

*#26 - image* Draw the structures after being oxidized:

answer

answers: #26 - images

question

*#27 - image*Draw the structures after being hydrogenated:

answer

answer: *#27 - image*

question

*#28 - image*Draw the structures after being reduced:

answer

answer: *#28 - image*

question

*#29 - image*State whether the product is chiral to the reactant:

answer

a.) achiral b.) chiral c.)achiral d.)achiral e.)achiral f.) chiral

question

Which of the following are consitional isomers? a.) 2-pentanone and 3-pentanone b.) 2-pentanone and pentanal c.) 2-pentanone and 2-pentanol d.) 2-pentanone and cyclopentanol

answer

a.)isomers b.)isomers c.)not isomers d.) isomers

question

*#30 - image* What is the COMPOUND E after reduction. What is COMPOUND F after dehydration. What is COMPOUND G after hydrogenation.

answer

answer: *#30 - image*

question

*#31 - image* a.) draw the structure of the product that will be formed if the alcohol gorup is oxidized. b.) what is the structure if the aldehyde is oxidized? c.) what is the structure if both are oxidized? _____ d.) draw the structure of the produce that will be formed if the ketone is reduced. e.) what is the structure if the aldehyde group is reduced f.) what is the structure if both are reduced?

answer

answer: *#31 - image*

question

Which of the redox coenzymes is most likely to be involved in each of the following types of reactions? A.) Alcohol to ketone B.) Alkene to alkane C.) Thiol to disulfide D.) Aldehyde to carboxylic acid

answer

A.) NAD+ B.) NADP+ C.) NAD+ D.) NAD+

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