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Class 12 Exam  >  Class 12 Questions  >  For producing amines, the reaction of nitro c... Start Learning for Free
For producing amines, the reaction of nitro compounds with iron scrap is preferred because
  • a)
    HCl is very cheap
  • b)
    HCl is formed on hydrolysis of FeCl2
  • c)
    Not too much HCl is formed in the reaction
  • d)
    Nitro compounds are easily available
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
For producing amines, the reaction of nitro compounds with iron scrap ...
This reaction is preferred because on reduction of nitro compouns to amine , Fe will get oxidize to Fe(II) a which on hydrolysis will produce HCl which is required in the reaction
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For producing amines, the reaction of nitro compounds with iron scrap ...
Reaction of nitro compounds with iron scrap

Nitro compounds (compounds containing the -NO2 functional group) can be reduced to amines through a variety of methods. One of the commonly used methods is the reaction of nitro compounds with iron scrap. This method has certain advantages, and the formation of hydrochloric acid (HCl) from FeCl2 is one of the reasons why this reaction is preferred.

Advantages of using iron scrap and HCl formation

1. Cheap availability of HCl: Hydrochloric acid is a commonly used chemical that is readily available and relatively inexpensive. This makes it a cost-effective option for the reduction of nitro compounds to amines.

2. Formation of HCl: When nitro compounds react with iron scrap, one of the products formed is FeCl2. On hydrolysis, FeCl2 reacts with water to produce HCl. This HCl can then act as a reducing agent in the reaction, facilitating the reduction of the nitro compound to the corresponding amine.

3. Controlled formation of HCl: The reaction of nitro compounds with iron scrap does not result in the excessive formation of HCl. This is important because an excess of HCl can lead to side reactions or undesired products. The controlled formation of HCl ensures that the reduction proceeds smoothly and selectively to form the desired amine product.

4. Availability of nitro compounds: Nitro compounds are relatively easily available as starting materials for the synthesis of amines. They can be synthesized through various methods or obtained commercially, making them accessible for use in the reduction reaction.

Conclusion

In conclusion, the reaction of nitro compounds with iron scrap is preferred for the production of amines due to the formation of hydrochloric acid (HCl) on hydrolysis of FeCl2. This method offers advantages such as the cheap availability of HCl, controlled formation of HCl, and the easy availability of nitro compounds. These factors make it a practical and efficient choice for the reduction of nitro compounds to amines.
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Read the passage given below and answer the following questions:Reductive alkylation is the term applied to the process of introducing alkyl groups into ammonia or a primary or secondary amine by means of an aldehyde or ketone in the presence of a reducing agent. The present discussion is limited to those reductive alkylations in which the reducing agent is hydrogen and a catalyst or "nascent" hydrogen, usually from a metalacid combination; most of these reductive alkylations have been carried out with hydrogen and a catalyst. The principal variation excluded is that in which the reducing agent is formic acid or one of its derivatives; this modification is known as the Leuckart reaction. The process of reductive alkylation of ammonia consists in the addition of ammonia to a carbonyl compound and reduction of the addition compound or its dehydration product. The reaction usually is carried out in ethanol solution when the reduction is to be effected catalytically:Since the primary amine is formed in the presence of the aldehyde it may react in the same way as ammonia, yielding an additional compound, a Schiff's base (RCH= NCH2R) and finally, a secondary amine. Similarly, the primary amine may react with the imine, forming an addition product which also is reduced to a secondary amine Finally, the secondary amine may react with either the aldehyde or the imine to give products which are reduced to tertiary amines.Similar reactions may occur when the carbonyl compound employed is a ketone.Q. The reaction of ammonia and its derivatives with aldehydes is called

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For producing amines, the reaction of nitro compounds with iron scrap is preferred becausea)HCl is very cheapb)HCl is formed on hydrolysis ofFeCl2c)Not too much HCl is formed in the reactiond)Nitro compounds are easily availableCorrect answer is option 'B'. Can you explain this answer?
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For producing amines, the reaction of nitro compounds with iron scrap is preferred becausea)HCl is very cheapb)HCl is formed on hydrolysis ofFeCl2c)Not too much HCl is formed in the reactiond)Nitro compounds are easily availableCorrect answer is option 'B'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about For producing amines, the reaction of nitro compounds with iron scrap is preferred becausea)HCl is very cheapb)HCl is formed on hydrolysis ofFeCl2c)Not too much HCl is formed in the reactiond)Nitro compounds are easily availableCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For producing amines, the reaction of nitro compounds with iron scrap is preferred becausea)HCl is very cheapb)HCl is formed on hydrolysis ofFeCl2c)Not too much HCl is formed in the reactiond)Nitro compounds are easily availableCorrect answer is option 'B'. Can you explain this answer?.
Solutions for For producing amines, the reaction of nitro compounds with iron scrap is preferred becausea)HCl is very cheapb)HCl is formed on hydrolysis ofFeCl2c)Not too much HCl is formed in the reactiond)Nitro compounds are easily availableCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12. Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
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