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प्रश्न
Out of o-nitrophenol and p-nitrophenol, which is more volatile? Explain.
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उत्तर
The ortho and para isomers can be separated by steam distillation. o-Nitrophenol is steam volatile due to intramolecular hydrogen bonding while p-nitrophenol is less volatile due to intermolecular hydrogen bonding which causes the association of molecules.
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संबंधित प्रश्न
Write the final product(s) in each of the following reactions:
Write the main products when
2, 4, 6-trinitrochlorobenzene is subjected to hydrolysis
Write the main product(s) in each of the following reactions:
Write the equation involved in the following reaction:
Reimer-Tiemann reaction
While separating a mixture of ortho and para nitrophenols by steam distillation, name the isomer which will be steam volatile. Give reason.
Name the reagent used in the following reaction:
Bromination of phenol to 2, 4, 6-tribromophenol.
\[\ce{C2H5OH + SOCl2 ->[Pyridine] C2H5Cl + SO2 + HCl}\]
The above reaction is known as:
Which of the following are benzylic alcohols?
(i) \[\ce{C6H5 - CH2 - CH2OH}\]
(ii) \[\ce{C6H5 - CH2OH}\]
(iii) \[\begin{array}{cc}
\ce{C6H5 - CH - OH}\\
\phantom{}|\phantom{.}\\
\phantom{..}\ce{CH3}\phantom{}
\end{array}\]
(iv) \[\begin{array}{cc}
\ce{C6H5 - CH2 - CH - OH}\\
\phantom{.......}|\phantom{}\\
\phantom{.........}\ce{CH3}\phantom{}
\end{array}\]
Nitration is an example of aromatic electrophilic substitution and its rate depends upon the group already present in the benzene ring. Out of benzene and phenol, which one is more easily nitrated and why?
Convert the following:
Phenol to N-phenylethanamide.
Which of the following is not aromatic?
Which of the following reacts with phenol to give salicylaldehyde after hydrolysis?
Why ortho-nitrophenol is steam volatile while para-nitrophenol is not?
For the pair phenol and cyclohexanol, answer the following:
Give one chemical test to distinguish between the two.
Convert the following by giving a chemical equation:
Phenol to salicylaldehyde.
