हिंदी

The reagents used to convert phenol to 2,4,6-tribromophenol is _____________ - Chemistry

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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.

MCQ
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उत्तर

The reagents used to convert phenol to 2,4,6-tribromophenol is Br2/H2O

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Alcohols and Phenols
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अध्याय 11: Alcohols, Phenols and Ethers - Multiple choice questions

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एससीईआरटी महाराष्ट्र Chemistry [English] 12 Standard HSC
अध्याय 11 Alcohols, Phenols and Ethers
Multiple choice questions | Q 7

संबंधित प्रश्न

Answer in one sentence/ word.

Write the name of the electrophile used in Kolbe’s Reaction.


When vapours of tert.butyl alcohol are passed over hot copper, it gives _____________


How will you bring about the following conversions?

2-methyl propan-2-ol to 2-methylpropene


How will you bring about the following conversions?

acetone to 2-methylpropan-2-ol


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.


An organic compound gives hydrogen on reaction with sodium metal. It forms an aldehyde with molecular formula C2H4O on oxidation with pyridinium chlorochromate. Give the chemical equations in support of these observations.


Phenol reacts with concentrated nitric acid in the presence of cone. H2SO4 to form ____________.


____________ is used for silvering mirrors.


In phenols, −OH group is attached to ___________ hybridised carbon.


The CORRECT decreasing order of boiling points for isomeric primary (1°), secondary (2°) and tertiary (3°) alcohols is ____________.


The secondary alcohol is ____________.


Which of following elements does not react with hot concentrated sulphuric acid?


What is the product of the following reaction?

\[\ce{CH3 - CH2 - CH2 - OH ->[conc. H2SO4][\Delta]}\]


+I effect of alkyl groups in alcohols increases the stability of ____________.


In Raschig's method for synthesis of phenol, the reactants used are ____________.


The number of σ bonds in carbolic acid is ______.


Identify 'Z' in the following series of reaction:

\[\ce{Butan - 2 - ol ->[PCl3] X ->[alco. KOH] Y ->[i) H2SO4][ii) H-OH/heat] Z}\]


Which of the following alcohols is NOT prepared by reduction of carbonyl compounds?


Which of the following compounds has lowest boiling point?


What is the product formed when aniline is treated with \[\ce{NaNO2 + HCl}\] previous to hydrolysis?


Which among the following is not the method of preparation of phenol?


Which of the following compounds reacts immediately with Lucas reagent?


The major product obtained in the following reaction is 


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:


Write the product when 1°, 2° and 3° alcohol vapours are passed over hot copper.


Explain: Phenols are acid while alcohol is neutral.


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