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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता ११ वी

Read the following reaction and answer the questions given below: A. Write the name of the reaction. B. Identify the electrophile in it. C. How is this electrophile generated?

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प्रश्न

Read the following reaction and answer the questions given below:

  1. Write the name of the reaction.
  2. Identify the electrophile in it.
  3. How is this electrophile generated?
टीपा लिहा
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उत्तर

  1. The name of the reaction is Friedel-Craft’s alkylation reaction.
  2. The electrophile in the reaction is +CH3.
  3. The electrophile +CH3 is generated as follows:
    \[\ce{\underset{\text{Methyl chloride}}{CH3 -}Cl + AlCl3 -> \underset{\text{Electrophile}}{^+CH3 +}AlCl^-_4}\]
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पाठ 15: Hydrocarbons - Exercises [पृष्ठ २६०]

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बालभारती Chemistry [English] Standard 11 Maharashtra State Board
पाठ 15 Hydrocarbons
Exercises | Q 8. | पृष्ठ २६०

संबंधित प्रश्‍न

Identify the main product of the reaction:

\[\ce{HC ≡ C - CH3 ->[H2][Pd-C/quinoline]}\] _______.


Name two reagents used for acylation of benzene.


Major product of the below mentioned reaction is, \[\ce{(CH3 )2 C = CH2 ->[ICI]}\]


Identify the compound (A) in the following reaction


Give IUPAC name for the following compound.

Ethyl isopropyl acetylene


Give IUPAC name for the following compound.

\[\ce{CH ≡ C – C ≡ C – C ≡ CH}\]


Write short notes on ortho, para directors in aromatic electrophilic substitution reactions.


How is propyne prepared from an alkylene dihalide ?


Describe the mechanism of Nitration of benzene.


Write the chemical equations for combustion of propane.


Suggest the route for the preparation of the following from benzene.

3 – chloro nitrobenzene


Suggest the route for the preparation of the following from benzene.

Bromo benzene


How will you convert ethyl chloride into n – butane?


Complete the following:

\[\begin{array}{cc}
\ce{CH2 - CH2 ->[Zn/C2H5OH]}\\
|\phantom{.......}|\phantom{..............}\\
\ce{Br}\phantom{.....}\ce{Br}\phantom{..............}
\end{array}\]


When acetylene is passed through red hot iron tube at 873 K, ____________ is/are obtained as product/s.


Which of the following is NOT a hetero-aromatic compound?


−Cl group is ____________.


Phenol on distillation with zinc dust gives ____________.


Which of the following is NOT alicyclic compound?


Direct bromination of benzene with excess reagent results in the formation of ____________.


Read the following reaction and answer the questions given below.

\[\begin{array}{cc}
\phantom{..............................}\ce{CH3}\\
\phantom{...........................}|\\
\ce{CH3 - C = CH2 + HBr ->[Benzoyl][peroxide] H3C - CH - CH2Br}\\
|\phantom{....................................}\\
\ce{CH3}\phantom{.................................}
\end{array}\]

  1. Write the IUPAC name of the product.
  2. State the rule that governs the formation of this product.

Read the following reaction and answer the questions given below. 

\[\begin{array}{cc}
\phantom{..............................}\ce{CH3}\\
\phantom{...........................}|\\
\ce{CH3 - C = CH2 + HBr ->[benzoyl][peroxide]CH3 - CH - CH2Br}\\
|\phantom{....................................}\\
\ce{CH3}\phantom{.................................}\\
\end{array}\]

  1. Write the IUPAC name of the product.
  2. State the rule that governs the formation of this product.

Read the following reaction and answer the questions given below.

\[\begin{array}{cc}
\phantom{.............................}\ce{CH3}\\
\phantom{...........................}|\\
\ce{CH3 - C = CH2 + HBr ->[benzoyl][peroxide] CH3 - CH - CH2Br}\\
 |\phantom{....................................}\\
\ce{CH3}\phantom{.................................}\\
\end{array}\]

  1. Write IUPAC name of the product.
  2. State the rule that governs formation of this product.

Read the following reaction and answer the questions given below.

\[\begin{array}{cc}
\phantom{..............................}\ce{CH3}\\
\phantom{...........................}|\\
\ce{CH3 - C = CH2 + HBr ->[benzoyl][peroxide] CH3 - CH - CH2Br}\\
|\phantom{....................................}\\
\ce{CH3}\phantom{.................................}
\end{array}\]

  1. Write the IUPAC name of the product.
  2. State the rule that governs the formation of this product.

Which of the following statement is NOТ correct for aromatic compounds?


Identify 'A' in the following reaction.

\[\ce{\underset{}{A + Chloromethane} ->[anhydrous][AlCl3] \underset{\underset{}{}}{2-Chlorotoluene + 4-Chlorotoluene}}\]


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