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प्रश्न
Answer in one sentence/ word.
Write the name of the electrophile used in Kolbe’s Reaction.
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उत्तर
Carbon dioxide
संबंधित प्रश्न
Choose the correct option.
Which is the most resistant alcohol towards oxidation reaction among the following?
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).
Reaction between hot conc. HI and anisole gives ______________
Write the name of major product when anisole reacts HI at 398 K
Draw intramolecular hydrogen bonding structure in o-nitrophenol.
How will you bring about the following conversions?
isopropyl alcohol to acetone
Write the reactions for the preparation of carbolic acid from aniline.
Which of the following compounds does not react with bromine in alkaline medium?
In phenols, −OH group is attached to ___________ hybridised carbon.
Sodium metal with ethyl alcohol gives __________ gas.
Phenol is ____________.
Isobutylene on hydroboration followed by oxidation with hydrogen peroxide in presence of base yields ______.
Identify 'A' and 'B' in the following series of reactions.
Carbolic acid is oxidised by acidified sodium dichromate to give ______.
Which following reagent is used to obtain alkene from alcohol?
Which of the following alcohols is least soluble in water?
The number of σ bonds in carbolic acid is ______.
Which among the following is allylic secondary alcohol?
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?
The acid, which contains both -OH and -COOR groups is ______.
Which among the following is not the method of preparation of phenol?
The product C in the following reaction is
Arrange O - H, C - H and N - H bonds in increasing order of their bond polarity.
Write the chemical reaction when hot copper is treated with Vapours of 2° (secondary) alcohol.
What is the commercial method of preparation of phenol?
The structure of A in the given reaction is:
