Which of the following statements would apply to compounds that belong to the same homologous series?
I they have similar physical properties
II they have similar chemical properties
III they contain the same functional group
IV they have the same molecular formula but different structures - VCE - SSCE Chemistry - Question 11 - 2007 - Paper 1
Question 11
Which of the following statements would apply to compounds that belong to the same homologous series?
I they have similar physical properties
II they have simil... show full transcript
Worked Solution & Example Answer:Which of the following statements would apply to compounds that belong to the same homologous series?
I they have similar physical properties
II they have similar chemical properties
III they contain the same functional group
IV they have the same molecular formula but different structures - VCE - SSCE Chemistry - Question 11 - 2007 - Paper 1
Step 1
I they have similar physical properties
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Answer
Compounds in the same homologous series exhibit similar physical properties due to their similar molecular structures and molecular weights as the number of repeating units increases.
Step 2
II they have similar chemical properties
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Answer
Compounds in the same homologous series tend to have similar chemical properties because they share the same functional groups, which dictate their reactivity.
Step 3
III they contain the same functional group
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Answer
Since all members of a homologous series contain the same functional group, they will display similar reactivity patterns due to this shared structural feature.
Step 4
IV they have the same molecular formula but different structures
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Answer
This statement is not entirely accurate; while compounds in a homologous series have related molecular formulas, they do not have the same molecular formula but instead differ by a constant structural unit. They share a general formula but differ in the number of repeating units.
