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प्रश्न
Write the reaction to get aspirin from salicylic acid.
उत्तर
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संबंधित प्रश्न
Answer in one sentence/ word.
Write the IUPAC name of alcohol having molecular formula C4H10O which is resistant towards oxidation.
Answer in brief.
Give the equations of the reactions for the preparation of phenol from isopropyl benezene.
Reaction between Grignard reagent and aldehyde other than formaldehyde leads to formation of _______________
The reagents used to convert phenol to 2,4,6-tribromophenol is _____________
Name the reagents used to convert phenol into
- picric acid
- p-benzoquinone
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?
2-methyl propan-2-ol to 2-methylpropene
Which alcohol is difficult to oxidise?
Which of the following compounds does not react with bromine in alkaline medium?
Bromination of phenol, will NOT give:
Which of following elements does not react with hot concentrated sulphuric acid?
What is the product of the following reaction?
\[\ce{CH3 - CH2 - CH2 - OH ->[conc. H2SO4][\Delta]}\]
\[\ce{CH3 - CH = CH2 ->[HBr][Peroxide] A}\]
Identify A.
In Dow process, chlorobenzene is converted into phenol by ____________.
Sodium benzene sulphonate reacts with NaOH and then on acidic hydrolysis, it gives __________.
The most resistant alcohol towards oxidation reaction is:
Which of the following alcohols has tertiary allylic carbon?
\[\ce{Isopropyl alcohol + acidic K2Cr2O7 -> X}\]
Identify product 'X' in the above reactions.
What is INCORRECT about the product written in the below given reaction?
\[\ce{R - CH2 - OH ->[PCC] R - COOH}\]
Identify the product B in following conversion.
\[\ce{Chlorobenzene + H2O ->[Cu, 673 K][Pressure] A ->[conc. H2SO4][373 K] B}\]
Which of the following alcohols is least soluble in water?
A reaction of phenol with chloroform in presence of sodium hydroxide to form salicylaldehyde is known as ____________.
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.
Write the product when 1°, 2° and 3° alcohol vapours are passed over hot copper.
Write the chemical reaction when hot copper is treated with Vapours of 2° (secondary) alcohol.
Write chemical reaction when hot copper is treated with Vapours of 3° (tertiary) alcohol.
