English
Karnataka Board PUCPUC Science 2nd PUC Class 12

How is the following conversion carried out? --Propene⟶Propan-2-ol - Chemistry

Advertisements
Advertisements

Question

How is the following conversion carried out?

\[\ce{Propene -> Propan-2-ol}\]

Chemical Equations/Structures
One Line Answer

Solution 1

If propene is allowed to react with water in the presence of an acid as a catalyst, then propan-2-ol is obtained.

\[\begin{array}{cc}
\ce{\underset{Propene}{CH3 - CH = CH2}->[H2O/H+][\Delta]CH3 - CH - CH3}\\
\phantom{.........................}|\\
\phantom{............................}\ce{\underset{Propan-2-ol}{OH}}\
\end{array}\]

shaalaa.com

Solution 2

\[\begin{array}{cc}
\ce{\underset{Propene}{CH3 - CH = CH2} + Conc.H2SO4 -> CH3 - CH - CH3 ->[H2O, \Delta][-H2SO4] CH3 - CH - CH3}\\
\phantom{.....................................}|\phantom{..........................}|\\
\phantom{..........................................}\ce{OSO3H}\phantom{.................}\ce{\underset{Propan-2-ol}{OH}}\
\end{array}\]

shaalaa.com

Notes

Students can refer to the provided solutions based on their preferred marks.

  Is there an error in this question or solution?
Chapter 11: Alcohols, Phenols and Ethers - Exercises [Page 345]

APPEARS IN

NCERT Chemistry [English] Class 12
Chapter 11 Alcohols, Phenols and Ethers
Exercises | Q 20.1 | Page 345

RELATED QUESTIONS

How will you convert: Propene to Propan-2-ol?


Write the main product(s) in each of the following reactions:


Write the structures of the main products when acetone (CH3 − CO − CH3) reacts with the following reagents :

CH3MgBr and then H3O+


Show how is the following alcohol prepared by the reaction of a suitable Grignard reagent on methanal?

\[\begin{array}{cc}
\ce{CH3 - CH - CH2OH}\\
|\phantom{......}\\
\ce{CH3}\phantom{...}
\end{array}\]


Predict the major product of acid catalysed dehydration of butan-1-ol.


Write the mechanism of hydration of ethene to yield ethanol.


How is the following conversion carried out?

\[\ce{Benzyl chloride -> Benzyl alcohol}\]


Show how you would synthesise the following alcohol from an appropriate alkene?


Aldehydes react with Grignard reagent to produce ____________.


Primary alcohols are prepared by the reduction of carboxylic acids. Though lithium aluminium hydride is a strong reducing agent, it is not used in the reaction. This is so because:


Aldehydes are reduced to the corresponding alcohols by the addition of hydrogen in the presence of catalysts to form ____________.


Benzaldehyde differs from acetaldehyde in that:


Alkenes convert into alcohols by ____________.


The reagent used for dehydration of an alcohol is


The best reagent to convert pent 3 – en 2 – 01 into pent 3 – in – 2 – one is


Glycerol is used in the manufacture


To synthesise 1.0 mole of 2-methylpropan-2-ol from Ethylethanoate ______ equivalents of CH3MgBr reagent will be required. (Integer value)


\[\ce{C3H8O ->[{[O]}][K2Cr2O7/H2SO4] C3H6O ->[I2 + NaOH(aq.)] CHI3}\]

In this reaction the first compound is:


\[\ce{? ->[\Delta, CN-][EtOH, H2O]}\] Benzoin.

The reactant is obtained by dry distillation of the calcium salts of the following pairs:


Given below are two statements:

Statement I: On heating with KHSO4, glycerol is dehydrated and acrolein is formed.

Statement II: Acrolein has a fruity odour and can be used to test glycerol's presence.

Choose the correct option.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×