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IB DP Chemistry Questions
Question 1
Which functional group is primarily responsible for the acidic properties of carboxylic acids?
A. Hydroxyl
B. Carbonyl
C. Carboxyl
D. Amino
Question 2
Which of the following compounds would be named using the IUPAC naming convention as 2-methylpropan-1-ol?
A. CH₃-CH(OH)-CH₃
B. CH₃-CH₂-CH₂-OH
C. CH₃-CH(CH₃)-CH₂-OH
D. CH₃-C(CH₃)(OH)-CH₃
Question 3
Which of the following functional groups is commonly found in amino acids?
A. Ester
B. Ether
C. Amino
D. Alkene
Question 4
In the IUPAC naming convention, how is the position of a functional group indicated in a compound with multiple functional groups?
A. By using Greek letters
B. By using the functional group's name as a prefix
C. By using numbers to indicate the carbon atom to which it is attached
D. By using capital letters
Question 5
Which of the following compounds is an aldehyde?
A. CH₃-COOH
B. CH₃-OH
C. CH₃-CHO
D. CH₃-CO-CH₃
Question 6
a) Define the term "functional group" in the context of organic chemistry. [2]
b) Explain the significance of functional groups in predicting the properties and reactivity of organic compounds. [3]
Question 7
a) List four common functional groups and provide a brief description for each. [4]
b) Why is the systematic naming, using IUPAC conventions, important in organic chemistry? [3]
Question 8
a) Describe the difference between primary, secondary, and tertiary classifications in the context of organic compounds. [3]
b) Given the compound name "2-methylpropan-1-ol", identify the functional group present and classify it as primary, secondary, or tertiary. [2]
Question 9
a) What is the role of functional groups in determining the physical and chemical properties of organic compounds? [2]
b) Identify the functional group present in ethanoic acid and describe its properties. [3]
c) How does the presence of multiple functional groups in a compound affect its reactivity? [2]
Question 10
a) Why is the IUPAC naming system important in organic chemistry? [2]
b) Name the compound with the molecular formula C4H8O2 that contains both a carbonyl and a hydroxyl functional group. [3]
c) Explain the significance of the position of functional groups in determining the name of an organic compound. [2]
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