मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Assertion: Phenol forms 2, 4, 6 – tribromophenol on treatment with BrX2 in carbon disulphide at 273 K. Reason: Bromine polarises in carbon disulphide. - Chemistry

Advertisements
Advertisements

प्रश्न

Assertion: Phenol forms 2, 4, 6 – tribromophenol on treatment with \[\ce{Br2}\] in carbon disulphide at 273 K.

Reason: Bromine polarises in carbon disulphide.

पर्याय

  • Assertion and reason both are correct and reason is correct explanation of assertion.

  • Assertion and reason both are wrong statements.

  • Assertion is correct statement but reason is wrong statement.

  • Assertion is wrong statement but reason is correct statement.

  • Both assertion and reason are correct statements but reason is not correct explanation of assertion.

MCQ
Advertisements

उत्तर

Assertion and reason both are wrong statements.

Explanation:

Phenol forms 2, 4, 6-tribromophenol on treatment with bromine in water. In phenols, the polarization of bromine takes place even in the absence of Lewis acid.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 11: Alcohols, Phenols and Ethers - Multiple Choice Questions (Type - I) [पृष्ठ १६४]

APPEARS IN

एनसीईआरटी एक्झांप्लर Chemistry [English] Class 12
पाठ 11 Alcohols, Phenols and Ethers
Multiple Choice Questions (Type - I) | Q 69 | पृष्ठ १६४

संबंधित प्रश्‍न

Give IUPAC name of the following ether:

CH3OCH2CH2Cl


Give IUPAC name of the following ether:

CH3CH2CH2OCH3


Give IUPAC name of the following ether:


Ethylidene dichloride when boiled with aqueous solution of NaOH yields _______.

(A) formaldehyde

(B) acetaldehyde

(C) acetone

(D) ethyl methyl ketone


How is phenol converted into the following?

Benzene


Write the IUPAC name of the following :


Write IUPAC name of the following


An example of a compound with functional group – O – is ____________.


Which of the following compounds is oxidised to prepare methyl ethyl ketone?


Ethylene reacts with Baeyer’s reagent to give ______.


\[\ce{HC ≡ CH ->[HgSO4][H2SO4] ->[CH3MgBr][H2O] ->[PBr3]}\]


The product of acid catalysed hydration of 2-phenylpropene is:


The heating of phenyl methyl ether with HI produces:


Which of the following compounds will react with sodium hydroxide solution in water?


Assertion: Phenols give o- and p-nitrophenol on nitration with conc. \[\ce{HNO3}\] and \[\ce{H2SO4}\] mixture.

Reason: –OH group in phenol is o–, p– directing.


Write complete reaction for the bromination of phenol in aqueous and non-aqueous medium.


Give the structures of Thiosulphuric acid and Peroxy monosulphuric acid.


Write IUPAC names of the following compounds: 

\[\begin{array}{cc}
\phantom{...............}\ce{CH3}\\
\phantom{.............}|\\
\ce{CH3 - CH - CH - C - CH3}\\
|\phantom{......}|\phantom{......}|\\
\phantom{...}\ce{CH3\phantom{...}OH\phantom{...}CH3}\\
\end{array}\] 


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×