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प्रश्न
Convert the following:
acetaldehyde to isopropyl alcohol.
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उत्तर
\[\begin{array}{cc}
\phantom{.}\ce{O}\phantom{......................}\ce{OMgBr}\phantom{...................}\ce{OH}\\
||\phantom{.......................}|\phantom{.............}\phantom{.............}|\phantom{..}\\
\ce{\underset{Acetaldehyde}{CH3 - C - H}->[CH3MgBr]CH3 - CH - CH3}\ce{\underset{-Mg (OH)Br}{->[H3O-]}\underset{Isopropyl alcohol}{CH3 - CH - CH3}}\\
\end{array}\]
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संबंधित प्रश्न
Explain why propanol has higher boiling point than that of the hydrocarbon, butane?
Alcohols are comparatively more soluble in water than hydrocarbons of comparable molecular masses. Explain this fact.
`CH_3-CH_2-Br"Alcoholic KOH"/""> B " HBR"/"">C"Na/Eather"/"">D`, the Compound D is
(A) ethane
(B) propane
(C) n-butane
(D) n-pentane
Give simple chemical tests to distinguish between the following pairs of compounds :
Ethanol and phenol
Arrange the following compounds in the increasing order of their acid strength:
p-cresol, p-nitrophenol, phenol
Write the structures of A, B and C in the following reactions :
\[ C_6 H_5 {NO}_2 \to^{Sn/HCI} A \to^{{NaNO}_2 /HCI}_{273 K} B \to^{H_2 O}_∆ C\]
Isopropyl alcohol is obtained by reacting which of the following alkenes with concentrated H2SO4 followed by boiling with H2O?
The correct order of boiling points for primary (1°), secondary (2°) and tertiary alcohol (3°) is:
Which of the following has lowest boiling point?
Which one of the following alcohols is least soluble in water?
Which of the following is most acidic?
Arrange the following compounds in increasing order of boiling point. Propan-1-ol, butan-1-ol, butan-2-ol, pentan-1-ol
Explain why alcohols and ethers of comparable molecular mass have different boiling points?
Arrange the following in order of increasing boiling point:
Ethoxyethane, Butanal, Butanol, n-butane
Assertion (A): Alcohols react both as nucleophiles and electrophiles.
Reason (R): The bond between C–O is broken when alcohols react as nucleophiles.
Select the most appropriate answer from the options given below:
How are the following conversion carried out?
Methyl magnesium bromide →2-Methylpropan-2-ol.
What is esterifications? How is an ester obtained from alcohol or phenol?
How are the following conversions carried out?
Methyl magnesium bromide → 2 -Methylpropan-2-ol.
How are the following conversions carried out?
\[\ce{Methyl magnesium bromide ->2-Methylpropan-2-ol}\]
How are the following conversions carried out?
\[\ce{Methyl magnesium bromide -> 2-Methylpropan-2-ol}\]
How is the following conversion carried out?
Methyl magnesium bromide → 2-Methylpropan-2-ol.
How is the following conversion carried out?
\[\ce{Methyl magnesium bromide ->2-Methylpropan-2-ol}\]
How is the following conversions carried out?
\[\ce{Methyl magnesium bromide → 2-Methylpropan-2-ol}\].
Identify ‘A’ in the following reaction.
\[\ce{A + Acetic anhydride ->[H^\oplus] Aspirin + Acetic acid}\]
