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प्रश्न
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+
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उत्तर
(B) Zn-Hg and conc. HCl
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संबंधित प्रश्न
How are the following compounds prepared?
Benzyl alcohol from benzyl chloride.
Identify the compound 'B' in the following series of reaction:
(A) n-propyl chloride
(B) Propanamine
(C) n-propyl alcohol
(D) Isoproply alcohol
Which of the following reagents is best for the following conversion?
(A) LiAlH4
(B) 
(C) H2/Ni, 453 K
(D) Zn-Hg+HCl(con)
How is ethanol prepared from methanal by using Grignard reagent?
How will you prepare ethanol, propan-2-ol and 2-methylpropan-2-ol from Grignard’s reagent?
How are the following compounds prepared?
Propan-1-ol from propanal
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
Give a balanced equation for the preparation of salicylaldehyde from phenol.
Identify A and B respectively in the following reaction:
\[\ce{tert-butyl alcohol ->[20‰H2SO4][363K] A + H2O ->[HBr][H2O2] B}\]
Write chemical reactions to prepare ethanamine from:
Acetonitrile
Write chemical reactions to prepare ethanamine from:
Nitroethane
How will you convert acetonitrile to ethylamine?
How will you prepare propanone (acetone) from Grignard reagent?
