California State University, Fresno CHEM 3B Chapter 10 and 11 Quiz 1)The one element necessarily present in every organic compound is    

California State University, Fresno

CHEM 3B

Chapter 10 and 11 Quiz

1)The one element necessarily present in every organic compound is     .

a.            Hydrogen

b.            Oxygen c. Carbon

d. Nitrogen

2.) The simplest alkane is              .

a. CH2 b. CH4

c.             C2H4

d.            C2H6

3.) Compounds that have the same molecular formula but differ in the way the atoms are arranged are called   .

a. Isotopes b. Isomers

c.             Homologs

d.            Allotropes

4.) How many different ways can butane be added as a substituent to a longer chain?

a.            1

b.            2

c.             3 d. 4

5.) In the name cyclohexane, the prefix cyclo means that             ?

a.            The compound is explosive

b.            The carbon atoms are joined in a ring

c.             The compound is a derivative of benzene

d.            The carbon have a valence of three

6.) Which of the following statements is false?

a.            In a secondary amine, the nitrogen is bonded to two carbon atoms

b.            In a tertiary alcohol, the carbon bearing the OH group is bonded to no hydrogen atoms

c.             Aldehydes, ketones and esters all contain a carbonyl group

d.            The molecular formula for the smallest carboxylic acid is C2H4O2

7.) Which of the following classes of compounds can be categorized as primary, secondary or, tertiary?

a. Aldehydes b. Amines

c.             Carboxylic acids

d.            Ketones

8.) Which of the following classes of compounds can be categorized as primary, secondary, or tertiary.

a.            Alcohols

b.            Aldehydes

c.             Carboxylic acids

d.            Ketones

9.            In which of the following classes of organic compounds is an oxygen atom bonded to a hydrogen atom?

a.            Aldehydes

b.            Carboxylic acids

c.             Ketones

d.            All of these