Chapter 9 - Organic Chemistry

The formula for butane is A) C4H10. B) C5H12. C) C6H14. D) C4H8.

A) C4H10.

Identify the alkane that contains three carbons. A) propene B) propane C) propyne D) propanone

B) propane

What is the general formula for a cycloalkane? A) CnHn B) CnH2n+2 C) CnH2n-2 D) CnH2n

D) CnH2n

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

D) RCOOR'.

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

A) ammonia.

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

B) basic.

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

C) propane

The most unique property of carbon is its ability to A) form four bonds. B) bond to oxygen. C) bond to nitrogen. D) bond to carbon.

D) bond to carbon.

Which of the following is an aromatic compound? A) butene B) hexyne C) ethane D) ethylbenzene

D) ethylbenzene

The compound below is classified as a(n) O=CH3CH2CH2C-OCH2CH3 A) aldehyde. B) carboxylic acid. C) ester. D) ketone.

C) ester.

The simplest alkane is A) monane. B) ethane. C) methane. D) propane.

C. methane.

The functional group of the organic acids is the A) hydroxyl group. B) amine group. C) carbonyl group. D) carboxyl group.

D) carboxyl group.

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

A) hydroxyl

The compound CH3NH2 is called A) methylamine. B) dimethylamine. C) triethylamine. D) methyl ammonia.

A) methylamine.

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.

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

B) hexyne

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

C) alkyne.

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

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

C) butane

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

D) C19H40

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

D) CH3OH.

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.

The structures that contains single bonds and an oxygen are A) alcohols and ethers. B) aldehydes and ketones. C) carboxylic acids and esters. D) alkenes.

A) alcohols and ethers.

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

B) C5H10.

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

A) acetic acid

The compound below is commonly known as A) acetone. B) acetaldehyde. C) benzaldehyde. D) formaldehyde.

A) acetone.

A compound containing only carbon and hydrogen and which has only single bonds between atoms is classified as an A) alkane. B) alkene. C) aromatic compound. D) alkyne.

A) alkane.

The intoxicating alcohol in "alcoholic" beverages is A) ethanol. B) methyl alcohol. C) 1-propanol. D) rubbing alcohol.

A) ethanol.

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

A) ethylene

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

B) RCOOH.

The compound below is a(n) A) carboxylic acid. B) aldehyde. C) ketone. D) alcohol.

B) aldehyde.

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.

What is the name of the compound that has the formula CH3CH3? A) methane B) ethane C) propane D) butane

B) ethane

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

B) ethane

CH3CH2OCH3 is called A) ethyl propyl ether. B) ethyl methyl ether. C) butyl propyl ether. D) dimethyl ether.

B) ethyl methyl ether.

In organic chemistry, compounds are generally classified by A) state. B) functional group. C) color. D) odor.

B) functional group.

Rubbing alcohol contains A) ethanol. B) isopropyl alcohol. C) n-propyl alcohol. D) methanol.

B) isopropyl alcohol.

The unique aspect of a saturated hydrocarbon is that it must contain A) only carbon and hydrogen. B) only single bonds. C) single and double bonds. D) single, double and triple bonds.

B) only single bonds.

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

B) saturated hydrocarbons.

Esters have been widely used as A) refrigerants. B) insecticides. C) fragrances. D) disinfectants.

C) fragrances.

Compounds with the same number and kinds of atoms but with different structures are known as A) homologs. B) isotopes. C) isomers. D) allotropes.

C) isomers.

Organic chemistry is most broadly defined as A) the chemistry of living systems. B) the chemistry of substances produced by living systems. C) the chemistry of the compounds of carbon. D) the chemistry of the non-metallic compounds.

C) the chemistry of the compounds of carbon.

Acetylene is A) CH4. B) C2H6. C) C2H4. D) C2H2.

D) C2H2.

The chemical formula of cyclohexane is A) C6H6. B) C6H8. C) C6H10. D) C6H12.

D) C6H12.

What is the name of the compound with a formula CH3CH2CH2CH3? A) methane B) ethane C) propane D) butane

D) butane

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.

A compound that contains only carbon and hydrogen is a(n) A) alcohol. B) carbohydrate. C) homolog. D) hydrocarbon.

D) hydrocarbon.

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

D) hydroxyl

The compound below is a(n) O=CH3CH2CCH3 A) alcohol. B) aldehyde. C) carboxylic acid. D) ketone.

D) ketone.

Carbon is almost always A) monovalent. B) divalent. C) trivalent. D) tetravalent.

D) tetravalent.

The formula for heptene is A) C7H14. B) C3H8. C) C4H10. D) C5H12.

A) C7H14.

An example of an alkane is A) C9H20. B) C5H10. C) C7H12. D) C8H20.

A) C9H20

The condensed structural formula for the molecule below is A) CH3CH2C(CH3)3. B) CH3CH2CH2(CH3)2CH3. C) CH3CH2CH2CH2CH2CH3. D) none of the above Answer: A

A) CH3CH2C(CH3)3.

The formula for propyne is A) C3H6. B) C3H4. C) C3H8. D) C3H3.

B) C3H4.

The formula for cyclopropane is A) C3H8. B) C7H16. C) C3H6. D) C7H12.

C) C3H6.

Organic compounds are A) nonpolar and less dense than water. B) polar and less dense than water. C) nonpolar and more dense than water. D) polar and more dense than water.

A) nonpolar and less dense than water.