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प्रश्न
The reagents used to convert phenol to 2,4,6-tribromophenol is _____________
विकल्प
Br2/CS2
Br2/CCl4
Br2/H2O
KBr aq.
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उत्तर
The reagents used to convert phenol to 2,4,6-tribromophenol is Br2/H2O
संबंधित प्रश्न
Answer in brief.
Explain why phenol is more acidic than ethyl alcohol.
Oxidation of ethyl alcohol using K2Cr2O7/dil H2SO4 leads to formation of _______________
Write IUPAC name of crotonyl alcohol.
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.
Write Kolbe’s reaction.
Write the reactions for the preparation of carbolic acid from aniline.
Write chemical reactions to convert phenol into salicyaldehyde. Write the name of the reaction. What happens when if CCl4 is used instead of CHCl3 in the above reaction.
Phenol reacts with concentrated nitric acid in the presence of cone. H2SO4 to form ____________.
____________ is used for silvering mirrors.
Which of the following reagents are required in the conversion of phenol to salicylic acid?
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 ______.
Sodium metal with ethyl alcohol gives __________ gas.
Isobutylene on hydroboration followed by oxidation with hydrogen peroxide in presence of base yields ______.
Cumene is used in the commercial method for the manufacture of ____________.
Which of the following alcohols has tertiary allylic carbon?
\[\ce{Isopropyl alcohol + acidic K2Cr2O7 -> X}\]
Identify product 'X' in the above reactions.
The number of moles of hydrogen gas formed when 2 moles of 2-methylpropan-2-ol reacts with aluminium is ____________.
The number of σ bonds in carbolic acid is ______.
Which of the following compounds does NOT react with sodium metal?
Which of the following on oxidation yields ethyl methyl ketone?
A reaction of phenol with chloroform in presence of sodium hydroxide to form salicylaldehyde is known as ____________.
What is the product formed when aniline is treated with \[\ce{NaNO2 + HCl}\] previous to hydrolysis?
The order of reactivity of hydrogen halides with ether is as follows.
Write the chemical reaction when hot copper is treated with Vapours of 2° (secondary) alcohol.
Arrange the following compounds in order of decreasing acidity:
