Question detail
How does the structure of halogenoalkanes influence their reactivity?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Halogenoalkanes
Question
- A. By determining the type of nucleophiles that can react
- B. By affecting the bond angles in the molecule
- C. By creating polar bonds that attract nucleophiles
- D. By influencing the boiling point of the compound
Answer
By creating polar bonds that attract nucleophiles
Explanation
The cause is the structural arrangement of halogenoalkanes, which includes polar carbon-halogen bonds. This polarity results in a partial positive charge on the carbon atom, making it an attractive site for nucleophiles. The effect is that nucleophiles can effectively attack the carbon atom, leading to substitution reactions. Consequently, this structural feature is crucial for understanding the reactivity of halogenoalkanes in organic chemistry.
Common mistake
Misunderstanding Polar Bonds in Halogenoalkanes
Students often state that halogenoalkanes are polar because of the presence of halogen atoms without explaining the reason behind the polarity.
Halogenoalkanes contain polar bonds due to the difference in electronegativity between carbon and halogen atoms. The halogen atom attracts the bonding electrons more strongly than the carbon atom, creating a dipole moment. This polarity leads to the halogenoalkanes having distinct physical properties, such as higher boiling points compared to non-polar compounds.
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