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

Match the example given in Column I with the name of the reaction in Column II. Column I (Example) Column II (Reaction) (i) ...O..............................O...||..............................||CH - Chemistry

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प्रश्न

Match the example given in Column I with the name of the reaction in Column II.

  Column I
(Example)
  Column II
(Reaction)
(i) \[\begin{array}{cc}
\phantom{...}\ce{O}\phantom{..............................}\ce{O}\phantom{}\\
\phantom{...}||\phantom{..............................}||\phantom{}\\
\ce{CH3 - C - Cl + H2 ->[Pd - C/BasO4] CH3 - C - H}
\end{array}\]
(a) Friedel Crafts acylation
(ii) (b) HVZ reaction
(iii) (c) Aldol condensation
(iv) \[\begin{array}{cc}
\ce{R - CH2 - COOH ->[Br/Red P] R - CH - COOH}\\
\phantom{.....................}|\\
\phantom{.......................}\ce{Br}
\end{array}\]
(d) Cannizaro’s reaction
(v) \[\ce{CH3 - CN ->[(i) SnCl2/HCl][(ii) H2O/H+] CH3CHO}\] (e) Rosenmund’s reductio
(vi) \[\ce{2CH3CHO ->[NaOH] CH3 - CH = CHCHO}\] (f) Stephen’s reaction
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उत्तर

  Column I
(Example)
  Column II
(Reaction)
(i) \[\begin{array}{cc}
\phantom{...}\ce{O}\phantom{..............................}\ce{O}\phantom{}\\
\phantom{...}||\phantom{..............................}||\phantom{}\\
\ce{CH3 - C - Cl + H2 ->[Pd - C/BasO4] CH3 - C - H}
\end{array}\]
(e) Rosenmund’s reductio
(ii) (d) Cannizaro’s reaction
(iii) (a) Friedel Crafts acylation
(iv) \[\begin{array}{cc}
\ce{R - CH2 - COOH ->[Br/Red P] R - CH - COOH}\\
\phantom{.....................}|\\
\phantom{.......................}\ce{Br}
\end{array}\]
(b) HVZ reaction
(v) \[\ce{CH3 - CN ->[(i) SnCl2/HCl][(ii) H2O/H+] CH3CHO}\] (f) Stephen’s reaction
(vi) \[\ce{2CH3CHO ->[NaOH] CH3 - CH = CHCHO}\] (c) Aldol condensation
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पाठ 12: Aldehydes, Ketones and Carboxylic Acids - Multiple Choice Questions (Type - I) [पृष्ठ १७४]

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एनसीईआरटी एक्झांप्लर Chemistry [English] Class 12
पाठ 12 Aldehydes, Ketones and Carboxylic Acids
Multiple Choice Questions (Type - I) | Q 41 | पृष्ठ १७४

संबंधित प्रश्‍न

Write the product in the following reaction


Write the product in the following reaction:


Write the chemical equations to illustrate the following name reactions : Rosenmund reduction


Write the structure of the product of the following reaction:


Write the reaction involved in the Stephen reduction


Ozonolysis of alkenes followed by the reaction with zinc dust and water gives ____________ depending on the substitution pattern of the alkene.


Aldehydes are produced on reduction of the following by DIBAL-H:


The oxidation of toluene to benzoic acid can be done using which of the following reagents.


An aromatic compound ‘A’ (Molecular formula \[\ce{C8H8O}\]) gives positive 2, 4-DNP test. It gives a yellow precipitate of compound ‘B’ on treatment with iodine and sodium hydroxide solution. Compound ‘A’ does not give Tollen’s or Fehling’s test. On drastic oxidation with potassium permanganate it forms a carboxylic acid ‘C’ (Molecular formula \[\ce{C7H6O2}\]), which is also formed along with the yellow compound in the above reaction. Identify A, B and C and write all the reactions involved.


\[\begin{array}{cc}
\ce{CH3 - CH2 - CH - CH3}\\
\phantom{.....}|\\
\phantom{......}\ce{Cl}
\end{array}\]  obtained by chlorination of n-butane, will be


When 2 – hydroxyl benzoic acid distilled with zinc dust, it give


The reaction of benzene with CO and HCl in the presence of anhydrous AlCl3 gives ______.


Assertion (A): Strong oxidising agents oxidise toluene and its derivatives to benzoic acids.

Reason (R): It is possible to stop the oxidation of toluene at the aldehyde stage with suitable reagents.

Select the most appropriate answer from the options given below:


An organic compound with molecular formula \[\ce{C7H7NO2}\] exists in three isomeric forms, the isomer ‘A’ has the highest melting point of the three. ‘A’ on reduction gives compound ‘B’ with molecular formula \[\ce{C7H9N}\]. ‘B’ on treatment with \[\ce{NaNO2/HCl}\] at 0-5° C to form compound ‘C’. On treating C with \[\ce{H3PO2}\], it gets converted to D with formula \[\ce{C7H8}\], which on further reaction with \[\ce{CrO2Cl2}\] followed by hydrolysis forms ‘E’ \[\ce{C7H6O}\]. Write the structure of compounds A to E. Write the chemical equations involved.


Account for the following:

Reduction of nitrobenzene using Fe and HCl is preferred over Sn and HCl.


Write the name of the reaction, structure and IUPAC name of the product formed when:

CH3CH2CN reacts with stannous chloride in the presence of hydrochloric acid, followed by hydrolysis.


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