Question 1
Which of the following is a primary amine?
A. CH3CONH2
B. CH3CH2NH2
C. CH3CH2OH
D. CH3COOH
Question 2
Which compound is commonly used in the synthesis of dyes?
A. Ethanol
B. Aniline
C. Methanoic acid
D. Ethanoic acid
Question 3
Which functional group is present in amides?
A. -OH
B. -NH2
C. -COOH
D. -CONH2
Question 4
Which of the following is NOT a nitrogen-containing compound?
A. Amine
B. Amide
C. Ester
D. Nitrile
Question 5
Which compound plays a significant role in the structure of proteins?
A. Ethanol
B. Methanal
C. Amino acids
D. Benzoic acid
Question 6
a) Define the term "amine" and explain how amines are classified based on their structure. [3]
b) Describe the general reaction of primary amines with carboxylic acids. [2]
Question 7
a) What is the significance of nitriles in the synthesis of other organic compounds? [2]
b) Explain the hydrolysis of nitriles and the products formed. [3]
Question 8
a) Describe the structure and significance of amides in proteins. [3]
b) How do amides differ from amines in terms of their reactivity? [2]
Question 9
a) Explain the difference between primary, secondary, and tertiary amines in terms of their structure. [3]
b) How do the boiling points of amines vary with their structure? [2]
c) Describe the reaction of amines with nitrous acid. [3]
Question 10
a) What are azo dyes and why are they significant in the dye industry? [3]
b) Describe the general method of preparation of azo dyes. [3]
c) Why are azo dyes often brightly coloured? [2]