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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

How will you bring about the following conversions? 2-methyl propan-2-ol to 2-methylpropene

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प्रश्न

How will you bring about the following conversions?

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

टीपा लिहा
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उत्तर

2-Methylpropan-2-ol undergoes dehydration when passed over hot copper at 573 K.

\[\begin{array}{cc}
\ce{H3C - C(OH) - CH3 ->[Cu/573K][dehydration] H3C - C = CH2}\\
\phantom{}|\phantom{...............................}|\phantom{.}\\
\phantom{....}\ce{\underset{\text{2-Methylpropan-2-ol}}{CH3}\phantom{..................}\underset{\text{2-Methylpropene}}{CH3}}\phantom{....}
\end{array}\]

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पाठ 11: Alcohols, Phenols and Ethers - Short Answer Questions (Type-II)

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एससीईआरटी महाराष्ट्र Chemistry [English] 12 Standard HSC
पाठ 11 Alcohols, Phenols and Ethers
Short Answer Questions (Type-II) | Q 3.2

संबंधित प्रश्‍न

Answer in one sentence/ word.

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


Write IUPAC name of crotonyl alcohol.


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  1. H2/Ni
  2. LiAlH4/H3O+

What is the action of following on phenol at low temperature?

  1. dil. HNO3
  2. conc. H2SO4
  3. Br2/CS2

How will you bring about the following conversions?

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Write the reactions for the preparation of carbolic acid from aniline.


Phenol is ____________.


Carbolic acid is oxidised by acidified sodium dichromate to give ______.


Phenoxide ion is more stable than phenol due to the ____________.


Which of the following alcohols has tertiary allylic carbon?


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


What is INCORRECT about the product written in the below given reaction?

\[\ce{R - CH2 - OH ->[PCC] R - COOH}\]


Identify the product B in following conversion.

\[\ce{Chlorobenzene + H2O ->[Cu, 673 K][Pressure] A ->[conc. H2SO4][373 K] B}\]


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Identify the reagent A used in the following conversion.

\[\ce{Phenol ->[A] Benzoquinone}\]


Identify product B in the following conversion?

\[\ce{Phenol ->[NaOH] A ->[CH3I] B}\]


Identify the product obtained when phenol is treated with bromine water?


Identify the role of PDC from the following.


Ethyl alcohol can be prepared from a Grignard reagent by the reaction of ______.


Amongst the following alcohols which would react fastest with cone. HCl and ZnCl2?


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


Which of the following compounds reacts immediately with Lucas reagent?


What is the action of nitrous acid on aniline?


Explain the reaction of 1° and 2° alcohol with oxidising agent chromic anhydride (CrO3).


What is the commercial method of preparation of phenol?


The C−O−C angle in ether is about ______.


What is the name of isopropyl alcohol according to the carbinol system?


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