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What is the minimum number of reactions required for the conversion of aniline to 1,3,5-tribromobenzene?
- a)2
- b)3
- c)4
- d)5
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
What is the minimum number of reactions required for the conversion of...
The three reactions are as follows:
- Reaction 1: Aniline on treatment with bromine water gives 2,4,6-tribromoaniline.
- Reaction 2: This on diazotisation with HNO2 gives 2,4,6-tribromobenzenediazonium chloride.
- Reaction 3: This on reaction with H3PO2, reduces the diazo group to hydrogen, to give 1,3,5-tribromobenzene.
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What is the minimum number of reactions required for the conversion of...
To convert aniline to 1,3,5-tribromobenzene, a series of reactions are required. Let's break down the process step by step:
Step 1: Nitration of Aniline
The first reaction involves the nitration of aniline to form 2-nitroaniline. This reaction is carried out by treating aniline with a mixture of concentrated nitric acid (HNO3) and concentrated sulfuric acid (H2SO4).
Step 2: Reduction of 2-Nitroaniline
The next step involves the reduction of 2-nitroaniline to form 1,3-diaminobenzene (also known as m-phenylenediamine). This reaction can be achieved by using a reducing agent like zinc dust in the presence of hydrochloric acid (HCl).
Step 3: Bromination of 1,3-Diaminobenzene
In this step, 1,3-diaminobenzene is brominated to form 1,3-dibromobenzene. This reaction is carried out by treating 1,3-diaminobenzene with bromine (Br2) in the presence of a suitable solvent, such as carbon tetrachloride (CCl4).
Step 4: Bromination of 1,3-Dibromobenzene
The final step involves the bromination of 1,3-dibromobenzene to form 1,3,5-tribromobenzene. This reaction can be achieved by treating 1,3-dibromobenzene with bromine (Br2) in the presence of a Lewis acid catalyst, such as iron (III) bromide (FeBr3).
Thus, a total of 3 reactions are required to convert aniline to 1,3,5-tribromobenzene. Therefore, the correct answer is option B) 3.
Step 1: Nitration of Aniline
The first reaction involves the nitration of aniline to form 2-nitroaniline. This reaction is carried out by treating aniline with a mixture of concentrated nitric acid (HNO3) and concentrated sulfuric acid (H2SO4).
Step 2: Reduction of 2-Nitroaniline
The next step involves the reduction of 2-nitroaniline to form 1,3-diaminobenzene (also known as m-phenylenediamine). This reaction can be achieved by using a reducing agent like zinc dust in the presence of hydrochloric acid (HCl).
Step 3: Bromination of 1,3-Diaminobenzene
In this step, 1,3-diaminobenzene is brominated to form 1,3-dibromobenzene. This reaction is carried out by treating 1,3-diaminobenzene with bromine (Br2) in the presence of a suitable solvent, such as carbon tetrachloride (CCl4).
Step 4: Bromination of 1,3-Dibromobenzene
The final step involves the bromination of 1,3-dibromobenzene to form 1,3,5-tribromobenzene. This reaction can be achieved by treating 1,3-dibromobenzene with bromine (Br2) in the presence of a Lewis acid catalyst, such as iron (III) bromide (FeBr3).
Thus, a total of 3 reactions are required to convert aniline to 1,3,5-tribromobenzene. Therefore, the correct answer is option B) 3.
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What is the minimum number of reactions required for the conversion of aniline to 1,3,5-tribromobenzene?a)2b)3c)4d)5Correct answer is option 'B'. Can you explain this answer?
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What is the minimum number of reactions required for the conversion of aniline to 1,3,5-tribromobenzene?a)2b)3c)4d)5Correct answer is option 'B'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about What is the minimum number of reactions required for the conversion of aniline to 1,3,5-tribromobenzene?a)2b)3c)4d)5Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the minimum number of reactions required for the conversion of aniline to 1,3,5-tribromobenzene?a)2b)3c)4d)5Correct answer is option 'B'. Can you explain this answer?.
What is the minimum number of reactions required for the conversion of aniline to 1,3,5-tribromobenzene?a)2b)3c)4d)5Correct answer is option 'B'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about What is the minimum number of reactions required for the conversion of aniline to 1,3,5-tribromobenzene?a)2b)3c)4d)5Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the minimum number of reactions required for the conversion of aniline to 1,3,5-tribromobenzene?a)2b)3c)4d)5Correct answer is option 'B'. Can you explain this answer?.
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