Chapter 9 Organic Chemistry

19) In representing the general formula of various functional groups, the symbol R stands for A) a halogen atom. B) a ring. C) an aromatic group. D) an alkyl group.

D) an alkyl group.

47) An analgesic is a substance that acts as a(n) A) fever reducer. B) disinfectant. C) anesthetic. D) pain reliever.

D) pain reliever.

59) Alkaloids, like morphine, caffeine, nicotine and cocaine, are heterocyclic A) amines. B) amides. C) ethers. D) esters.

A) amines.

37) When a bee stings, one of the compounds it injects is A) acetic acid. B) butyric acid. C) formic acid. D) hydrochloric acid.

C) formic acid.

23) Glycerol is an alcohol with ________ hydroxyl groups A) one B) two C) three D) four

C) three

20) Alcohols are characterized by which functional group? A) hydroxyl B) carboxyl C) halide D) ester

A) hydroxyl

49) Esters are often used as A) anesthetics. B) disinfectants. C) fragrances. D) insecticides.

C) fragrances.

27) Diethyl ether is the most important of the ethers. It has the structure of A) CH3CH2OCH2CH3. B) CH3CH2OH. C) CH3CH2OCH3. D) (CH3)2CHOH.

A) CH3CH2OCH2CH3.

42) Vinegar is a solution of ________ in water. A) acetic acid B) butyric acid C) formic acid D) propionic acid

A) acetic acid

51) Amines are derivatives of A) ammonia. B) methane. C) water. D) amino acids.

A) ammonia.

48) This substance is an ester of the phenol group of salicylic acid with acetic acid and is commonly called A) aspirin. B) Maalox. C) Milk of Magnesia. D) Tylenol.

A) aspirin.

56) Amino acids are multifunctional compounds that contain A) carboxyl and amine groups. B) carboxyl and amide groups. C) ester and amine groups. D) aldehyde and amide groups.

A) carboxyl and amine groups.

38) The -COOH group represents the A) carboxyl group. B) carbonyl group. C) alcohol group. D) aldehyde group.

A) carboxyl group.

11) Which of the following is an alkene? A) ethylene B) butyne C) cyclohexane D) xylene

A) ethylene

28) The smallest cyclic ether is called A) ethylene oxide. B) ethylene glycol. C) ethanol. D) diethyl ether.

A) ethylene oxide.

5) All of the following are properties of hydrocarbons EXCEPT A) they have a higher density than water. B) their boiling points increase as the number of carbons increases. C) they burn readily. D) they are good solvents for nonpolar substances.

A) they have a higher density than water.

14) Benzene is an unsaturated hydrocarbon. Which of the following is NOT a property of benzene? A) Benzene is a liquid at room temperature. B) Benzene undergoes the same reactions that other unsaturated hydrocarbons do. C) Benzene contains only carbon and hydrogen. D) Benzene has a ring of carbon atoms in its structure.

B) Benzene undergoes the same reactions that other unsaturated hydrocarbons do.

1) The element whose atoms have a unique ability to bond to each other and to other kinds of atoms is A) sodium. B) carbon. C) sulfur. D) nitrogen.

B) carbon.

45) The compound formed by the reaction of a carboxylic acid with an alcohol is a(n) A) aldehyde. B) ester. C) ether. D) ketone.

B) ester.

46) Many of the flavors isolated from foods are A) carboxylic acids. 46) Many of the flavors isolated from foods are A) carboxylic acids. B) esters. C) alcohols. D) ketones. C) alcohols. D) ketones.

B) esters.

8) Which of the following compounds is saturated? A) pentene B) ethane C) butyne D) pentadiene

B) ethane

22) The main ingredient in most antifreezes is A) ethanol. B) ethylene glycol. C) glycerol. D) gasoline.

B) ethylene glycol.

36) The simplest aldehyde is A) acetone. B) formaldehyde. C) propionaldehyde. D) methanol.

B) formaldehyde.

12) Which of the following is an alkyne? A) ethylene B) hexyne C) heptane D) benzene

B) hexyne

18) Chlorinated hydrocarbons have been used as A) fuels. B) insecticides. C) propellants. D) refrigerants.

B) insecticides.

3) Alkanes are often called A) unsaturated hydrocarbons. B) saturated hydrocarbons. C) carbohydrates. D) saturated fats.

B) saturated hydrocarbons.

16) Chlorinated hydrocarbons, such as carbon tetrachloride CCl4, make good dry cleaning solvents because A) they dissolve in water. B) they dissolve water insoluble stains, like grease and oil. C) they are not liquids at room temperature. D) they cause no significant health problems.

B) they dissolve water insoluble stains, like grease and oil.

10) An example of a molecular formula of an alkyne is A) C6H14. B) C5H10. C) C5H8. D) C6H6.

C) C5H8.

39) The simplest carboxylic acid is commonly known as A) ethanoic acid. B) butyric acid. C) methanoic acid. D) propionicacid.

C) methanoic acid.

24) All of the following contain more than one hydroxyl group EXCEPT A) ethylene glycol. B) glycerol. C) methanol. D) propylene glycol.

C) methanol.

2) What is the name of the compound with a formula CH3CH2CH3? A) methane B) ethane C) propane D) butane

C) propane

52) The compound (CH3)3N is called A) methylamine. B) dimethylamine. C) trimethylamine. D) methyl ammonia.

C) trimethylamine.

50) All of the following are green chemistry innovations EXCEPT A) increased use of aqueous media as solvents. B) "on water" reactions. C) use of petroleum-based solvents. D) use of microwave reactors.

C) use of petroleum-based solvents.

4) Which of the following alkanes will have the highest boiling point? A) CH4 B) C6H14 C) C12H26 D) C19H40

D) C19H40

21) The formula of methanol is A) COH. B) CHOH. C) CH2OH. D) CH3OH.

D) CH3OH.

44) The general formula for an ester is A) ROR'. B) RCOOH. C) RCOR'. D) RCOOR'.

D) RCOOR'.

6) Methane, benzene, 1-butyne, and 2-pentene are all examples of A) alkenes. B) alkanes. C) aromatic compounds. D) hydrocarbons.

D) hydrocarbons.

25) A phenol has a(n) ________ group attached to a benzene ring. A) amino B) carbonyl C) carboxyl D) hydroxyl

D) hydroxyl

40) The salts of carboxylic acids, such as sodium benzoate, are often used in foods as A) flavor enhancers. B) colorings. C) sweeteners. D) preservatives.

D) preservatives.

7) Acetylene is an A) alkane. B) alkene. C) alkyne. D) aromatic compound.

C) alkyne.

9) An example of a molecular formula of an alkene is A) C7H16. B) C5H10. C) C5H8. D) C6H6.

B) C5H10.

41) The general formula for a carboxylic acid is A) ROR'. B) RCOOH. C) RCOR'. D) RCOOR'.

B) RCOOH.

58) Which of the following families of organic compounds does NOT contain an oxygen atom? A) alcohol B) amine C) carboxylic acid D) ketone

B) amine

54) Amines are A) acidic. B) basic. C) neutral. D) variable with respect to acid/base behavior.

B) basic.

33) The general formula for a ketone is A) ROR'. B) RCOOH. C) RCOR'. D) RCOOR'.

C) RCOR'.

15) Organic compounds that contain a benzene ring or possess certain properties similar to those of benzene are called ________ compounds. A) alkaloid B) acidic C) aromatic D) saturated

C) aromatic

13) Which of the following is an alkane? A) butene B) propyne C) butane D) toluene

C) butane

53) The compound CH3CH2NHCH2CH2CH3 is called A) ethylmethylamine. B) methylpropylamine. C) ethylpropylamine. D) propylamine.

C) ethylpropylamine.

29) Aldehydes and ketones share a common functional group. The group is the A) hydroxyl group. B) phenol group. C) ether group. D) carbonyl group.

D) carbonyl group.

26) Compounds that have two alkyl groups attached to an oxygen atom are called A) alcohols. B) phenols. C) esters. D) ethers.

D) ethers.

17) In general, CFCs are A) solids with high melting points. B) solids with low melting points. C) liquids with high boiling points. D) gases or liquids with low boiling points.

D) gases or liquids with low boiling points.