QQuestionChemistry
QuestionChemistry
Which answer describes hydrogen bonding?
A. The attraction between hydrogen and the permanent dipole of a weakly electronegative molecule.
B. The attraction between hydrogen and lone electron pairs of a strongly electronegative molecule.
C. The attraction between hydrogen and an induced dipole of a strongly electronegative molecule.
D. The attraction between hydrogen and a permanent dipole of a weakly electronegative molecule.
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Answer
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Step 1:Let's solve this step by step:
Step 2:: Understanding Hydrogen Bonding
Hydrogen bonding is a special type of intermolecular force that occurs between a hydrogen atom bonded to a highly electronegative atom (typically N, O, or F) and another highly electronegative atom with a lone pair of electrons.
Step 3:: Analyzing the Key Characteristics
- Requires a hydrogen atom bonded to a highly electronegative atom - Involves attraction to a lone pair of electrons - Occurs between molecules with highly electronegative atoms
Step 4:: Examining the Options
A. Incorrect - Mentions a weakly electronegative molecule B. Correct - Describes hydrogen bonding precisely C. Incorrect - Refers to an induced dipole D. Incorrect - Mentions a weakly electronegative molecule
Step 5:: Detailed Explanation of Correct Answer
- This accurately describes the mechanism of hydrogen bonding, such as in water ($$H_2O$$) or ammonia ($$NH_3$$)
The correct answer is B because: - It specifies hydrogen bonding with a strongly electronegative molecule - It mentions lone electron pairs
Final Answer
The attraction between hydrogen and lone electron pairs of a strongly electronegative molecule.
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