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The polarity of molecules can be investigated using a charged rod - Scottish Highers Chemistry - Question 5 - 2017
Question 5
The polarity of molecules can be investigated using a charged rod. The charged rod will attract a stream of polar liquid flowing from a burette. Which of the follow... show full transcript
Worked Solution & Example Answer:The polarity of molecules can be investigated using a charged rod - Scottish Highers Chemistry - Question 5 - 2017
Step 1
Which of the following liquids would not be attracted?
Answer
To determine which liquid would not be attracted to the charged rod, we need to consider the polarity of the liquids listed.
- Water: This is a highly polar molecule due to its bent shape and the significant difference in electronegativity between hydrogen and oxygen. It will be attracted to the charged rod.
- Propanone (Acetone): This molecule is polar as well, primarily due to the carbonyl (C=O) group, resulting in some dipole-dipole interactions with the charged rod.
- Propanol: This alcohol is also polar due to the hydroxyl (−OH) group, which can interact with the charged rod effectively.
- Hexane: This molecule is non-polar due to its hydrocarbon structure consisting only of carbon and hydrogen without any significant difference in electronegativity.
Therefore, the liquid that would not be attracted to the charged rod is Hexane (D).