Advertisements
Advertisements
प्रश्न
Convert the following:
acetaldehyde to isopropyl alcohol.
Advertisements
उत्तर
\[\begin{array}{cc}
\phantom{.}\ce{O}\phantom{......................}\ce{OMgBr}\phantom{...................}\ce{OH}\\
||\phantom{.......................}|\phantom{.............}\phantom{.............}|\phantom{..}\\
\ce{\underset{Acetaldehyde}{CH3 - C - H}->[CH3MgBr]CH3 - CH - CH3}\ce{\underset{-Mg (OH)Br}{->[H3O-]}\underset{Isopropyl alcohol}{CH3 - CH - CH3}}\\
\end{array}\]
APPEARS IN
संबंधित प्रश्न
Give reasons for the following: Butan-1-ol has a higher boiling point than diethyl ether.
Give reasons for the following : Boiling point of ethanol is higher in comparison to methoxymethane.
Explain why propanol has higher boiling point than that of the hydrocarbon, butane?
`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
Write the structures of A, B and C in the following reactions :
\[ C_6 H_5 {NO}_2 \to^{Sn/HCI} A \to^{{NaNO}_2 /HCI}_{273 K} B \to^{H_2 O}_∆ C\]
Account for the following:
CH3CHO is more reactive than CH3COCH3 towards reaction with HCN.
Alcohols have high boiling points because of ____________.
The correct order of boiling points for primary (1°), secondary (2°) and tertiary alcohol (3°) is:
Alcohols of low molecular weight are _____________.
Which of the following has lowest boiling point?
Which statement is not correct about alcohol?
Which of the following is most acidic?
Arrange the following in the increasing order of their property indicated:
ethanol, ethanoic acid, benzoic acid (boiling point)
A solution of phenol in chloroform when treated with aqueous NaOH gives compound P as a major product. The mass percentage of carbon in P is ______. (to the nearest integer) (Atomic mass: C = 12; H = 1; O = 16)
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.
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?
\[\ce{Methyl magnesium bromide ->2-Methylpropan-2-ol}\]
How is the following conversions carried out?
\[\ce{Methyl magnesium bromide → 2-Methylpropan-2-ol}\].
Identify ‘A’ in the following reaction.
\[\ce{A + Acetic anhydride ->[H^\oplus] Aspirin + Acetic acid}\]
