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प्रश्न
Write the reaction to get aspirin from salicylic acid.
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उत्तर
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संबंधित प्रश्न
Answer in one sentence/ word.
Hydroboration-oxidation of propene gives _________.
Answer in brief.
Give the equations of the reactions for the preparation of phenol from isopropyl benezene.
An ether (A), C5H12O, when heated with excess of hot HI produce two alkyl halides which on hydrolysis form compound (B) and (C), oxidation of (B) gave and acid (D), whereas oxidation of (C) gave a ketone (E). Deduce the structural formula of (A), (B), (C), (D), and (E).
With the help of chemical equations show what happens when cumene hydroperoxide is treated with dil. acid.
Draw intramolecular hydrogen bonding structure in o-nitrophenol.
What is the action of following reagents on pent-3-enal?
- H2/Ni
- LiAlH4/H3O+
How will you bring about the following conversions?
isopropyl alcohol to acetone
In the Lucas test for alcohols, the appearance of turbidity is due to the formation of ____________.
Which of the following compounds does not react with bromine in alkaline medium?
Phenol is obtained from cumene ____________.
The CORRECT decreasing order of boiling points for isomeric primary (1°), secondary (2°) and tertiary (3°) alcohols is ____________.
Isobutylene on hydroboration followed by oxidation with hydrogen peroxide in presence of base yields ______.
____________ will NOT undergo acetylation.
The most resistant alcohol towards oxidation reaction is:
(I)
(II) \[\ce{P + Zn ->[\Delta] Q}\]
(III) \[\ce{P ->[Na2Cr2O7][H2SO4] R}\]
Q and R are respectively:
Identify the product B in following conversion.
\[\ce{Chlorobenzene + H2O ->[Cu, 673 K][Pressure] A ->[conc. H2SO4][373 K] B}\]
Which isomer of C4H10O is optically active?
Which of the following alcohols is least soluble in water?
Which among the following is allylic secondary alcohol?
Identify the compound having highest boiling point from the following?
Identify the product X in the following reaction.
\[\ce{Phenol ->[Na2Cr2O7][H2SO4] X}\]
Amongst the following alcohols which would react fastest with cone. HCl and ZnCl2?
The product C in the following reaction is
The major product obtained in the following reaction is
Arrange the following compounds in an increasing order of their solubility in water:
Explain: Phenols are acid while alcohol is neutral.
What is the commercial method of preparation of phenol?
