Advertisements
Advertisements
प्रश्न
How will you bring about the following conversions?
acetone to 2-methylpropan-2-ol
Advertisements
उत्तर
Grignard reagent, methyl magnesium bromide reacts with acetone to form an adduct which on hydrolysis with dilute acid gives 2-methylpropan-2-ol.
संबंधित प्रश्न
Answer in one sentence/ word.
Write the IUPAC name of alcohol having molecular formula C4H10O which is resistant towards oxidation.
Answer in one sentence/ word.
Write the name of the electrophile used in Kolbe’s Reaction.
Answer in brief.
Give a simple chemical test to distinguish between ethanol and ethyl bromide.
When vapours of tert.butyl alcohol are passed over hot copper, it gives _____________
With the help of chemical equations show what happens when cumene hydroperoxide is treated with dil. acid.
What is the action of following on phenol at low temperature?
- dil. HNO3
- conc. H2SO4
- Br2/CS2
Phenol reacts with concentrated nitric acid in the presence of cone. H2SO4 to form ____________.
Which alcohol is difficult to oxidise?
Which of the following compounds does not react with bromine in alkaline medium?
The number of isomeric alcohols possible with the formula C4H10O is ____________.
The product 'C' in the following reaction is:
\[\ce{CH3CH2Br ->[alc. KCN] {'A'} ->[H3O^+][\Delta] {'B'} ->[i. LiAlH4][ii. H3O^+] {'C'}}\]
Carbolic acid is oxidised by acidified sodium dichromate to give ______.
Sodium benzene sulphonate reacts with NaOH and then on acidic hydrolysis, it gives __________.
(I)
(II) \[\ce{P + Zn ->[\Delta] Q}\]
(III) \[\ce{P ->[Na2Cr2O7][H2SO4] R}\]
Q and R are respectively:
Which of the following compounds does NOT react with sodium metal?
Identify product B in the following conversion?
\[\ce{Phenol ->[NaOH] A ->[CH3I] B}\]
A reaction of phenol with chloroform in presence of sodium hydroxide to form salicylaldehyde is known as ____________.
Identify the compound having highest boiling point from the following?
Identify the product X in the following reaction.
\[\ce{Phenol ->[Na2Cr2O7][H2SO4] X}\]
The acid, which contains both -OH and -COOR groups is ______.
Product (B) in this reaction is:
Amongst the following alcohols which would react fastest with cone. HCl and ZnCl2?
Which of the following compounds has lowest boiling point?
What is the product obtained in Reimer - Tiemann reaction?
Write the product when 1°, 2° and 3° alcohol vapours are passed over hot copper.
Explain: Phenols are acid while alcohol is neutral.
What is the commercial method of preparation of phenol?
