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प्रश्न
The reagents used to convert phenol to 2,4,6-tribromophenol is _____________
पर्याय
Br2/CS2
Br2/CCl4
Br2/H2O
KBr aq.
उत्तर
The reagents used to convert phenol to 2,4,6-tribromophenol is Br2/H2O
संबंधित प्रश्न
Answer in brief.
Give a simple chemical test to distinguish between ethanol and ethyl bromide.
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 Grignard reagent and aldehyde other than formaldehyde leads to formation of _______________
Write chemical equation of acetyl chloride with phenol
What is the action of following on phenol at low temperature?
- dil. HNO3
- conc. H2SO4
- Br2/CS2
How will you bring about the following conversions?
2-methyl propan-2-ol to 2-methylpropene
Phenol reacts with concentrated nitric acid in the presence of cone. H2SO4 to form ____________.
Which alcohol is difficult to oxidise?
____________ is used for silvering mirrors.
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.
The CORRECT decreasing order of boiling points for isomeric primary (1°), secondary (2°) and tertiary (3°) alcohols is ____________.
The secondary alcohol is ____________.
Identify 'A' and 'B' in the following series of reactions.
(I)
(II) \[\ce{P + Zn ->[\Delta] Q}\]
(III) \[\ce{P ->[Na2Cr2O7][H2SO4] R}\]
Q and R are respectively:
Which among the following compounds is used to prepare solid fuel using calcium acetate?
Which of the following on oxidation yields ethyl methyl ketone?
Identify product B in the following conversion?
\[\ce{Phenol ->[NaOH] A ->[CH3I] B}\]
Identify the role of PDC from the following.
Identify the product X in the following reaction.
\[\ce{Phenol ->[Na2Cr2O7][H2SO4] X}\]
Product (B) in this reaction is:
Amongst the following alcohols which would react fastest with cone. HCl and ZnCl2?
Which among the following is not the method of preparation of phenol?
The order of reactivity of hydrogen halides with ether is as follows.
Arrange O - H, C - H and N - H bonds in increasing order of their bond polarity.
Arrange the following compounds in an increasing order of their solubility in water:
Convert the following :
cumene to phenol.
