The compound is an example of polycyclic, non-benzenoid fused rings. Here, the aromaticity is defined by Craig's rule.
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Craig's rule states that if a molecule contains , then the count total of number of bonds can be calculated with the value of .
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If , the compound is aromatic.
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Here,
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and . So, the compound is aromatic
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II
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The carbon atom restricts the configuration of . Hence, the structure is non aromatic.
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III
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Does not follow Huckel's rule.
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Cyclic structure (yes)
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Planer structure (yes)
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The structures have where . So, the structure is antiaromatic.
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IV
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The Indole structure has , and followed Huckel's rule.
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So, the structure is aromatic.
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V
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Counting , we get , and hence, the structure is antiaromatic.
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Cyclic
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Planer
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\n\n"},"encodingFormat":"text/html","position":1,"text":"III and V"},"comment":{"@type":"Comment","text":"Follow the Huckel's rule and the Craig's rule. "},"eduQuestionType":"Multiple choice","encodingFormat":"text/markdown","learningResourceType":"Practice problem","suggestedAnswer":[{"@type":"Answer","comment":{"@type":"Comment","text":"It is a wrong option."},"encodingFormat":"text/html","position":0,"text":"I and IV"},{"@type":"Answer","comment":{"@type":"Comment","text":"It is a wrong option."},"encodingFormat":"text/html","position":2,"text":"II and V"},{"@type":"Answer","comment":{"@type":"Comment","text":"It is a wrong option."},"encodingFormat":"text/html","position":3,"text":"I and III"}],"text":"
Among the following.
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I
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II
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III
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IV
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V
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The antiaromatic compounds are
\n"},"name":"Quiz on Organic Chemistry - Some Basic Principles and Techniques","typicalAgeRange":"10-17","url":"https://www.embibe.com/questions/Among-the-following.%0AI-%0AII-%0AIII-%0AIV-%0AV-%0AThe-antiaromatic-compounds-are%0A/EM7026508"}
Embibe Experts Solutions for Chapter: Organic Chemistry - Some Basic Principles and Techniques, Exercise 3: Level 3
Author:Embibe Experts
Embibe Experts Chemistry Solutions for Exercise - Embibe Experts Solutions for Chapter: Organic Chemistry - Some Basic Principles and Techniques, Exercise 3: Level 3
Attempt the practice questions on Chapter 21: Organic Chemistry - Some Basic Principles and Techniques, Exercise 3: Level 3 with hints and solutions to strengthen your understanding. Chemistry Crash Course NEET solutions are prepared by Experienced Embibe Experts.
Questions from Embibe Experts Solutions for Chapter: Organic Chemistry - Some Basic Principles and Techniques, Exercise 3: Level 3 with Hints & Solutions
The ammonia evolved from of a compound in Kjeldahl's estimation of nitrogen neutralizes of solution. The weight percentage of nitrogen in the compound is: