Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
Rank the following molecules according to decreasing melting point where 1 is the highest melting point and 4 is the lowest based on IMF.
Transcribed Image Text:This image contains structural diagrams of four different organic compounds, labeled a, b, c, and d. Below is a detailed description of each:
**a. Structure Description:**
- This compound appears to be a keto form of an aromatic compound.
- It has two six-membered rings with alternating double bonds indicating aromaticity.
- Attached to one of the rings is a ketone group (C=O) with an oxygen displaying two lone pairs, and one hydrogen atom connected to a carbon adjacent to this group.
**b. Structure Description:**
- A simple benzene ring with a single methyl (CH₃) group attached.
- The structure represents an aromatic compound known as toluene, though not explicitly labeled.
**c. Structure Description:**
- This is an aromatic compound with a single ring containing a ketone group.
- The ketone oxygen has two lone pairs of electrons, indicating it is bonded to a carbonyl group.
- A hydrogen atom is bonded to a carbon adjacent to the carbonyl group.
**d. Structure Description:**
- This structure also contains an aromatic benzene ring.
- Attached to the ring is an amide group (CONH₂), with the oxygen double-bonded to carbon and displaying two lone pairs. The nitrogen is bonded to two hydrogen atoms.
These structures likely represent common functional groups seen in aromatic chemistry, illustrating basic examples of ketones, nitriles, and simple alkyl benzene derivatives.
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