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Questions
Write the reaction involved in the preparation of phenol from benzene sulphonic acid.
How will you convert the following? (Write a chemical equation.)
Phenol from benzene sulphonic acid.
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Solution
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Answer in brief.
Explain why phenol is more acidic than ethyl alcohol.
Oxidation of ethyl alcohol using K2Cr2O7/dil H2SO4 leads to formation of _______________
Reaction between hot conc. HI and anisole gives ______________
Write chemical equation of acetyl chloride with phenol
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\[\ce{C3H8O ->[KMnO4][(Oxidation)] C3H6O2}\]
The compound C3H8O is a/an ____________.
Which of the following compounds is obtained, when phenol react with bromine water?
In phenols, −OH group is attached to ___________ hybridised carbon.
Phenol is ____________.
Isobutylene on hydroboration followed by oxidation with hydrogen peroxide in presence of base yields ______.
Which of following elements does not react with hot concentrated sulphuric acid?
\[\ce{Isopropyl alcohol + acidic K2Cr2O7 -> X}\]
Identify product 'X' in the above reactions.
Identify the product B in following conversion.
\[\ce{Chlorobenzene + H2O ->[Cu, 673 K][Pressure] A ->[conc. H2SO4][373 K] B}\]
Which of the following compounds does NOT react with sodium metal?
Identify 'Z' in the following series of reaction:
\[\ce{Butan - 2 - ol ->[PCl3] X ->[alco. KOH] Y ->[i) H2SO4][ii) H-OH/heat] Z}\]
Identify the compound having highest boiling point from the following?
Identify the role of PDC from the following.
Which among the following phenolic compound is most acidic in nature?
Amongst the following alcohols which would react fastest with cone. HCl and ZnCl2?
What is the product formed when aniline is treated with \[\ce{NaNO2 + HCl}\] previous to hydrolysis?
Which among the following is not the method of preparation of phenol?
What is the product obtained in Reimer - Tiemann reaction?
Write the chemical reaction when hot copper is treated with Vapours of 1° (primary) alcohol.
Write the chemical reaction when hot copper is treated with Vapours of 2° (secondary) alcohol.
Propene can be converted into propan-1-ol by:
The C−O−C angle in ether is about ______.
Which of the following is trihydric phenol?
