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Alcohols, Phenols and Ethers ANSWERS



SOLUTIONS





Question 1
Consider the following reaction
C2H5OH + H2SO4   Product
Among the following, which one cannot be formed as a product under any conditions?
Ethylene
Ethyl-hydrogen sulphate
Diethyl ether
😎
Acetylene
Question 2
Denatured alcohol is
😎
Rectified spirit + methanol + naphtha
Undistilled ethanol
Rectified spirit
Ethanol + methanol
Question 3
Ethyl chloride is converted into diethyl ether by
Perkin's reaction
Grignard reagent
Wurtz reaction
😎
Williamson's synthesis
Question 4
Formation of diethyl ether from ethanol is based on a
😎
dehydration reaction
dehydrogenation reaction
hydrogenation reaction
heterolytic fission reaction
Question 5
From amongst the following alcohols the one that would react fastest with conc. HCl and anhydrous ZnCl2, is
😎
2-Methylpropan-2-ol
2-Butanol
1-Butanol
2-Methylpropanol
Question 6
In preparation of alkene from alcohol using Al2O3 which is effective factor:
Porosity of Al2O3
😎
Temperature
Concentration
Surface area of Al2O3
Question 7
In the following sequence of reactions,
CH3CH2OHimage001
the compound ‘D’ is
butanal
n-butyl alcohol
😎
n-propyl alcohol
propanal
Question 8
In Williamson's synthesis
an alcohol is heated with conc. H2SO4 at 140°C
an alkyl halide is treated with sodium
😎
an alkyl halide is treated with sodium alkoxide
None of the above
Question 9
Methanol cannot be dried with anhydrous CaCl2 because
CaCl2 dissolves in it
it is not good dehydrating agent
😎
it forms a solid CaCl× 4CH3OH
it reacts with CH3OH
Question 10
Methyl phenyl ether can be obtained by reacting
😎
phenolate ions and methyl iodide
methoxide ions and bromobenzene
methanol and phenol
bromobenzene and methyl bromide
author

DESH DEEPAK A P S CHAUHAN

M.Sc. CHEMISTRY!

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