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प्रश्न
`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
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उत्तर
(C) n-butane
`CH_3-CH_2-Br"Alcoholic KOH"/""> CH_2=CH_2 " HBR"/"">CH_3-CH_2-Br"Na/Eather"/"">Ch_3-CH_2-CH_2-CH_3`,
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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?
Identify the chiral molecule in the following pair :
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.
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 of the following is most acidic?
Phenol does not undergo nucleophilic substitution reaction easily due to ______.
Arrange the following compounds in increasing order of boiling point. Propan-1-ol, butan-1-ol, butan-2-ol, pentan-1-ol
Assertion: Boiling points of alcohols and ethers are high.
Reason: They can form intermolecular hydrogen-bonding.
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)
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:
Write a note on Kolbe's reaction
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.
Convert the following:
acetaldehyde to isopropyl alcohol.
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.
\[\ce{A + Acetic anhydride ->[H^\oplus] Aspirin + Acetic acid}\]
