Question:

Answer: d

Question: A carbon atom is most likely to form what kind of bond(s) with other atoms?

a) covalent

b) ionic bonds, covalent bonds, and hydrogen bonds

c) hydrogen

d) covalent bonds and hydrogen bonds

e) ionic

Answer: a

Question: How many structural isomers are possible for a substance having the molecular formula C4H10?

a) 3

b) 11

c) 2

d) 4

e) 1

Answer: c

Question:

Answer: d

Question: Which two functional groups are always found in amino acids?

a) carboxyl and amino

b) amino and sulfhydryl

c) hydroxyl and carboxyl

d) ketone and methyl

e) carbonyl and amino

Answer: a

Question: Which chemical group can act as an acid?

a) amino

b) hydroxyl

c) methyl

d) carboxyl

e) carbonyl

Answer: d

Question: Which of the functional groups, hydroxyl, carboxyl, and amino, is most likely to gain a proton and become positively charged?

a) The carboxyl group is most likely to gain a proton.

b) The hydroxyl group is most likely to gain a proton.

c) The amino group is most likely to gain a proton.

Answer: a

Question: Which statement about a methyl functional group is correct?

a) A methyl group consists of a carbon bonded to three hydrogen atoms.

b) A methyl group is polar.

c) A methyl group may be negatively charged.

Answer: a

Question: Identify the functional groups.

a) Amino and carboxyl are functional groups.

b) Lipids and proteins are functional groups.

c) DNA and RNA are functional groups.

Answer: a

Question: Which statement about isomers is correct?

a) Cis-trans isomers are mirror image isomers.

b) Enantiomers differ in biological activity.

c) Structural isomers differ in the position of double bonds within the molecule

Answer: a