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An organic compound gives hydrogen on reaction with sodium metal. It forms an aldehyde with molecular formula C2H4O on oxidation with pyridinium chlorochromate. Give the chemical equations in support of these observations.
Concept: Preparation of Alcohols and Phenols
Explain the fact that in alkyl aryl ethers, the alkoxy group is ring activating and ortho/para directing towards electrophilic aromatic substitution.
Concept: Ethers
How will you prepare diethyl ether by dehydration of alcohol?
Concept: Ethers
Write chemical reactions of following reagents on methoxyethane:
hot HI
Concept: Classification of Alcohols, Phenols and Ethers
Convert the following:
Ethyl alcohol into ethyl acetate.
Concept: Nomenclature of Alcohols, Phenols and Ethers
Write preparation of diethyl ether.
Concept: Ethers
Convert the following :
cumene to phenol.
Concept: Preparation of Alcohols and Phenols
Write the reactions involved in dehydration of 1°, 2° and 3° alcohols.
Concept: Addiction > Alcohol >> Mechanism of Dehydration of Alcohols
Which among the following reducing agents is NOT used to reduce acetaldehyde to ethyl alcohol?
(A) Na-Hg and water
(B) Zn-Hg and conc. HCl
(C) H2-Raney Ni
(D) LiAlH4/H+
Concept: Addiction > Alcohol >> Methods of Preparation
How are the following compounds prepared?
Benzyl alcohol from benzyl chloride.
Concept: Addiction > Alcohol >> Methods of Preparation
Identify the compound 'B' in the following series of reaction:
(A) n-propyl chloride
(B) Propanamine
(C) n-propyl alcohol
(D) Isoproply alcohol
Concept: Addiction > Alcohol >> Methods of Preparation
Which of the following reagents is best for the following conversion?
(A) LiAlH4
(B) 
(C) H2/Ni, 453 K
(D) Zn-Hg+HCl(con)
Concept: Addiction > Alcohol >> Methods of Preparation
How is ethanol prepared from methanal by using Grignard reagent?
Concept: Addiction > Alcohol >> Methods of Preparation
`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
Concept: Chemical Properties of Alcohols and Phenols
Which of the following is the first oxidation product of secondary alcohol?
(A) Alkene
(B) Aldehyde
(C) Ketone
(D) Carboxylic acid
Concept: Addiction > Alcohol >> Secondary and Tertiary Alcohols
How will you prepare ethanol, propan-2-ol and 2-methylpropan-2-ol from Grignard’s reagent?
Concept: Addiction > Alcohol >> Methods of Preparation
How are the following compounds prepared?
Propan-1-ol from propanal
Concept: Addiction > Alcohol >> Methods of Preparation
Propene on oxidation with diborane in presence of alkaline hydrogen peroxide gives
(a) propane-1- ol
(b) propane-2-ol
(c) allyl alcohol
(d) propane-1, 2-diol
Concept: Addiction > Alcohol >> Methods of Preparation
Write resonance structures of aniline. What is the action of benzene diazonium chloride on ethanol?
Concept: Commercially Importance Alcohols
Identify A and B respectively in the following reaction:
\[\ce{tert-butyl alcohol ->[20‰H2SO4][363K] A + H2O ->[HBr][H2O2] B}\]
Concept: Addiction > Alcohol >> Methods of Preparation
