
Prepare carbolic acid from benzene sulphonic acid. Write a chemical equation for the action of neutral ferric chloride on phenol.
Answer
505.2k+ views
Hint: To answer this question first you need to write the structural formula of both the compounds. Then you should do the conversion in steps. You should also know that carbolic acid is known as phenol. Now you can easily get your answer.
Complete step by step solution: Let’s do this conversion step by step -
First, we treated benzene sulphonic acid with aqueous NaOH which gives sodium salt of benzene sulphonic acid.
Then, we heated this sodium salt of benzene sulphonic acid and heated with NaOH at C to form the sodium salt of phenol (sodium phenoxide).
Finally, the acid hydrolysis of sodium salt gives carbolic acid (phenol).
The action of neutral ferric chloride on phenol gives violet colored complex .
Therefore, we prepared carbolic acid from benzene sulphonic acid and also wrote a chemical equation for the action of neutral ferric chloride on phenol.
Note: Let’s discuss something related to the nomenclature of the complex compound formed in the second reaction.
is usually called phenoxide; it is the conjugate base of phenol . Since it’s being used as a ligand and it has a negative charge, change the final -e to -o to get the ligand name phenoxido.
Then we can form the name of . The central metal is iron, but since the complex is negatively charged, we call it ferrate. In particular, it’s hexaphenoxidoferrate(III) because there are six phenoxido ligands, and also the iron has a +3 oxidation number.
Complete step by step solution: Let’s do this conversion step by step -
First, we treated benzene sulphonic acid with aqueous NaOH which gives sodium salt of benzene sulphonic acid.
Then, we heated this sodium salt of benzene sulphonic acid and heated with NaOH at
Finally, the acid hydrolysis of sodium salt gives carbolic acid (phenol).

The action of neutral ferric chloride on phenol gives violet colored complex
Therefore, we prepared carbolic acid from benzene sulphonic acid and also wrote a chemical equation for the action of neutral ferric chloride on phenol.
Note: Let’s discuss something related to the nomenclature of the complex compound formed in the second reaction.
Then we can form the name of
Recently Updated Pages
Master Class 12 Business Studies: Engaging Questions & Answers for Success

Master Class 12 English: Engaging Questions & Answers for Success

Master Class 12 Social Science: Engaging Questions & Answers for Success

Master Class 12 Chemistry: Engaging Questions & Answers for Success

Class 12 Question and Answer - Your Ultimate Solutions Guide

Master Class 12 Economics: Engaging Questions & Answers for Success

Trending doubts
Give 10 examples of unisexual and bisexual flowers

Draw a labelled sketch of the human eye class 12 physics CBSE

Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE

Differentiate between insitu conservation and exsitu class 12 biology CBSE

What are the major means of transport Explain each class 12 social science CBSE

Franz thinks Will they make them sing in German even class 12 english CBSE
