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

Which of the following compounds is the weakest Brönsted base?

Advertisements
Advertisements

प्रश्न

Which of the following compounds is the weakest Brönsted base?

पर्याय

MCQ
Advertisements

उत्तर

Explanation:

Amines (i, ii) have stronger tendency to accept a proton and hence are stronger Bronsted bases than phenol (iii) and alcohol (iv). Since phenol is more acidic than alcohol, therefore, phenol (iii) has the least tendency to accept a proton and hence it is the weakest Bronsted base.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 13: Amines - Multiple Choice Questions (Type - I) [पृष्ठ १८४]

APPEARS IN

एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
पाठ 13 Amines
Multiple Choice Questions (Type - I) | Q 23 | पृष्ठ १८४

संबंधित प्रश्‍न

Accomplish the following conversion:

Nitrobenzene to benzoic acid


Give the structure of A, B and C in the following reaction:

\[\ce{C6H5NO2 ->[Fe/HCl] A ->[NaNO2 + HCl][273 K] B ->[H2O/H+][\Delta] C}\]


Give a plausible explanation for the following:

Why are amines less acidic than alcohols of comparable molecular masses?


Write reactions to bring about the following conversions.

Acetamide to Ethylamine


Write reactions to bring about the following conversions.

Acetamide to methylamine


Explain the following reaction with a suitable example.

Hofmann elimination reaction


The end product C of the following reaction is

\[\ce{C2H5NH2 ->[HNO2] A ->[PCl5] B ->[NH3][Alcohol] C}\]


Identify the product obtained when benzyl chloride undergoes ammonolysis in presence of excess ammonia followed by the reaction with two moles of methyl iodide.


Which of the following reactions is appropriate for converting benzamide to aniline?


In aqueous phase the order of basic strength of alkylamine is ______.


The best reagent for converting 2–phenylpropanamide into 2-phenylpropanamine is ______.


Which of the following amines can be prepared by Gabriel synthesis.

(i) Isobutyl amine

(ii) 2-Phenylethylamine

(iii) N-methylbenzylamine

(iv) Aniline


Suggest a route by which the following conversion can be accomplished.


Write following conversions:

acetanilide `->` p-nitroaniline


How will you bring out the following conversion?


In the given reaction what is the X?

\[\begin{array}{cc}
\ce{O}\phantom{.......................}\\
||\phantom{.......................}\\
\phantom{}\ce{R - C - OH <-[H3O] Χ ->[H] RCH2NH2}
\end{array}\]


Which of the following compound is expected to be most basic?


Which of the following CANNOT be prepared by ammonolysis of alkyl halide?


A compound 'A' on reduction with iron scrap and hydrochloric acid gives compound 'B' with molecular formula C6H7N. Compound 'B' on reaction with CHCl3 and alcoholic KOH produces an obnoxious smell of carbylamine due to the formation of 'C'. Identify 'A', 'B' and 'C' and write the chemical reactions involved.


Write short note on the following:

Ammonolysis


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×