1. What are polyamines?
A.
Amines containing two or more amino groups
B.
Amines containing only one amino group
C.
Amines containing a carbonyl group
D.
Amines containing a halogen atom
Correct Answer:
Amines containing two or more amino groups
Explanation:
Polyamines are compounds that contain two or more amino groups in the same molecule.
2. Which of the following is a diamine?
A.
Methylamine
B.
Ethane-1,2-diamine
C.
Trimethylamine
D.
Aniline
Correct Answer:
Ethane-1,2-diamine
Explanation:
Ethane-1,2-diamine contains two amino groups, so it is classified as a diamine, a type of polyamine.
3. A polyamine containing exactly two amino groups is called a:
A.
Monoamine
B.
Diamine
C.
Triamine
D.
Amide
Correct Answer:
Diamine
Explanation:
A compound with exactly two amino groups is called a diamine.
4. Which formula represents ethane-1,2-diamine?
A.
CH3NH2
B.
H2NCH2CH2NH2
C.
(CH3)3N
D.
C6H5NH2
Correct Answer:
H2NCH2CH2NH2
Explanation:
Ethane-1,2-diamine has two amino groups attached to the two carbon atoms of an ethane chain, giving the formula H2NCH2CH2NH2.
5. Which of the following compounds contains three amino groups?
A.
Propane-1,3-diamine
B.
Ethane-1,2-diamine
C.
Propane-1,2,3-triamine
D.
Methylamine
Correct Answer:
Propane-1,2,3-triamine
Explanation:
Propane-1,2,3-triamine contains three amino groups and is therefore a triamine, which belongs to the polyamines.
6. Which compound is commonly known as ethylenediamine?
A.
Methanamine
B.
Ethane-1,2-diamine
C.
Propane-1,3-diamine
D.
Benzenamine
Correct Answer:
Ethane-1,2-diamine
Explanation:
Ethylenediamine is the common name for ethane-1,2-diamine, a polyamine containing two amino groups.
7. What is the minimum number of amino groups present in a polyamine?
A.
One
B.
Two
C.
Three
D.
Four
Correct Answer:
Two
Explanation:
A polyamine must contain at least two amino groups; a compound with one amino group is a monoamine.
8. Which name indicates that a compound is a polyamine with three amino groups?
A.
Propanamine
B.
Propanediamine
C.
Propanetriamine
D.
Propanol
Correct Answer:
Propanetriamine
Explanation:
The term triamine indicates the presence of three amino groups, making the compound a polyamine.
9. Which of the following is not a polyamine?
A.
Ethane-1,2-diamine
B.
Propane-1,3-diamine
C.
Propane-1,2,3-triamine
D.
Ethylamine
Correct Answer:
Ethylamine
Explanation:
Ethylamine contains only one amino group, so it is a monoamine rather than a polyamine.
10. Hexane-1,6-diamine belongs to which class of compounds?
A.
Monoamines
B.
Diamines
C.
Triamines
D.
Amides
Correct Answer:
Diamines
Explanation:
Hexane-1,6-diamine contains two amino groups, so it belongs to the diamine class of polyamines.
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