Advertisements
Advertisements
प्रश्न
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.
Advertisements
उत्तर

APPEARS IN
संबंधित प्रश्न
Answer in one sentence/ word.
Hydroboration-oxidation of propene gives _________.
Answer in brief.
Give a simple chemical test to distinguish between ethanol and ethyl bromide.
Reaction between Grignard reagent and aldehyde other than formaldehyde leads to formation of _______________
When vapours of tert.butyl alcohol are passed over hot copper, it gives _____________
Write the name of major product when anisole reacts HI at 398 K
What is the action of following reagents on pent-3-enal?
- H2/Ni
- LiAlH4/H3O+
What is the action of following on phenol at low temperature?
- dil. HNO3
- conc. H2SO4
- Br2/CS2
An unknown alcohol is treated with Lucas reagent. Explain how you will determine whether the alcohol is primary, secondary or tertiary. Indicate by chemical equation the reaction between isopropyl alcohol and Lucas reagent.
How will you bring about the following conversions?
acetone to 2-methylpropan-2-ol
Phenol reacts with concentrated nitric acid in the presence of cone. H2SO4 to form ____________.
Which of the following compounds does not react with bromine in alkaline medium?
In phenols, −OH group is attached to ___________ hybridised carbon.
α-butylene when subjected to hydroboration oxidation reaction, yields ______.
Phenol is obtained from cumene ____________.
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?
The number of isomeric alcohols possible with the formula C4H10O is ____________.
+I effect of alkyl groups in alcohols increases the stability of ____________.
The most resistant alcohol towards oxidation reaction is:

Identify reagents X, Y and Z.
Which of the following alcohols has tertiary allylic carbon?
The number of σ bonds in carbolic acid is ______.
Identify the product obtained when phenol is treated with bromine water?
The compound which reacts fastest with Lucas reagent at room temperature is ______.
Identify the compound amongst the following of which 0.1 M aqueous solution has highest boiling point.
Amongst the following alcohols which would react fastest with cone. HCl and ZnCl2?
Which of the following compounds reacts immediately with Lucas reagent?
What is the product obtained in Reimer - Tiemann reaction?
What is the commercial method of preparation of phenol?
