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IIT JEE Alcohols And Phenols
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1. Amongst the following the maximum boiling point is of
2-butanol
1-butanol
2-methanol
2-methyl-1-propanol
2. Primary alcohols can be prepared from alkenes by
mercuration and demercuration of alkenes
direct hydration of alkenes
diboration of alkenes
All the above
3. Secondary alcohol can be prepared from Grignard reagent by reacting Grignard reagent with
ethoxyethane
methanal
propanal
facetaldehyde
4. ou are provided with a mixture of ortho meta and paranitrophenols. On steam distillation the component obtained will beo-
o-nitrophenol
p-nitrophenol
m-nitrophenol
a mixture of A and B
5. Carbinol is
1-butanol
ethyl alcohol
2-propanol
methyl alcohol
6. Vapours of isobutyl alcohol when passed over heated copper gives
2 methyl propanal
2 ethyl propane
butanone
butanal
7. The source of sugar for wine is
grapes
apples
methane
orange
8. Proof spirit is aqueous ethyl alcohol containing??..by volume of alcohol.
67.10%
27.50%
57.10%
99%
9. Which of the following is used in the manufacture of bakelite?
formaldehyde
Phenol
Ethyl alcohol
Both A and B
10. Alcohols are isomeric with
ethers
esters
carbonylic acids
aldehydes
11. Which of the following resist oxidation under ordinary conditions?
Isobutyl alcohol
Sec. butyl alcohol
Tert. butyl alcohol
None of above
12. Propene on treatment with dil. sulphuric acid givesNone of above
1-propanol
2-propanol
A and B
None of above
13. As the alkyl part goes on increasing in alcohol the solubility of alcohol in water
may increase or decrease
goes on increasing
remains constant
decreases
14. Reduction of which of the following will give only ethyl alcohol?
propyl methanoate
methyl methanoate
formic acid
ethyl acetate
15. Power alcohol is absolute alcohol blended with petrol in the ratio of
15%
35%
20%
25%
16. Which will have the maximum solubility in water?
Tert. butyl alcohol
Isobutyl alcohol
Methanol
1 butanol
17. Cane sugar on hydrolysis gives
galactose and sucrose
fructose only
glucose only
glucose and fructose
18. Methyl alcohol can be obtained from
coal gas
charcoal
producer gas
water gas
19. Alcohols have higher boiling point than alkanes of the corresponding molecular mass because
alcohols are miscible with water
alcohols have hydrogen bond
alcohols have ionic bond
alcohols contains OH group
20. The only primary alcohol that can be prepared by the indirect hydration of alkenes is
methyl alcohol
isobutyl alcohol
propyl alcohol
ethyl alcohol
21. Nobels oil is
dinitro glycerine
trinitroglycol
glycerol trinitrate
glycerol
22. Pyroligenous acid is obtained by the destructive distillation of
coal
petroleum
wood
gasoline
23. Grain spirit is
n-propyl alcohol
isobutyl alcohol
isopropyl alcohol
isopropyl alcohol
24. Proof spirit is alcohol-water mixture that contains
77.2% alcohol by volume
57.2% alcohol by weight
2N alcohol
2M alcohol
25. Amongst the following secondary alcohol is
2-butanol
1-butanol
2-methanol
2-methyl-1-propanol
26. thyl methyl carbinol is
butyl alcohol
primary butyl alcohol
tert. butyl alcohol
sec. butyl alcohol
27. Alcoholic fermentation is carried out by the action of
invertase
glucose
zymase
yeast
28. Phenol is used in the preparation of
aspirin
salol
bakelite
All the above
29. Aspirin is also known as
Phenyl salicylate
Acetyl salicylate
Methyl salicylic acid
Acetyl salicylic acid.
30. 3-Dimethyl-2-butanol on reaction with HCl yields mainly
2-Chloro-2 3-dimethylbutane
1-Chloro-2 3-dimethylbutane
2-Chloro-3 3-dimethylbutane
1-Chloro-3 3-dimethylbutane.
31. The reaction between alcohol and carboxylic acids is called.
Esterification
Hydrolysis
Saponification
Hydrogenation
32. Absolute alcohol is
95% methanol
100% ethanol
100% ethanol
None of above
33. Which of the following is not characteristic of alcohols ?
They are lighter than water.
Their boiling points increase fairly uniformly with increasing molecular mass
Lower members are insoluble in water but solubility regularly increases with molecular
Lower mimbers have pleasant smell and burning taste while higher members are odourless adn tasteless.
34. Clear orange solution of chromic anhydride in aqueous sulphuric acid turn blue-green on reaction with
3-Methyl-3-pentanol
2-Butanol
2-Methyl-2-propanol
2-Methyl-2-butanol.
35. Which of the following alochols would give blood red colouration in Victor Meyers Test ?
sec-Pentyl alcohol
iso-Pentyl alcohol
tert-Pentyl alcohol .
None of above
36. Sodium will sink in
ethanol
kerosene
water
both A and B
37. Maltose is converted to???.by maltase.
one molecule of glucose and fructose each
two molecules of sucrose
two molecules of glucose
glucose and fructose
38. Which of the following alcohols is most soluble in water ?
n-Butyl alcohol
iso-Butyl alcohol
sec-Butyl alcohol
tert-Butylalcohol.
39. On distilling 2-hydroxy benzoic acid with Zn dust it gives
Phenol
Benzoic acid
Benzaldehyde
a polymeric compound.
40. Propylene is subjected to hydroboratio oxidation reaction. The product formed would be
Propanal
1-Propanol
2-Propanol
Propanone.
41. Absolute ethyl alcohol cannot be obtained by simple distillation of alcohol because
it forms zeotrope with water
it forms an azeotropic mixture with water
alcohol molecules are heavily hydrated
the difference in the boiling point of alcohol and water is less than 300
42. Starch is converted to maltose by the enzyme
zymase
lactase
maltase
diastase
43. Glycerol can be puridied by.
Steam distillation
Simple distillation
Vacuum distillation
Frational distillation
44. Hou many stereoisomers are possible for 2 3-dichloropentane
2
3
4
6
45. Glycerol is obtained on commercial scale from
Fats
Propylene
Both of the above
None of above
46. Phenol p-Methylphenol m-Nitrophenol and p-Nitrophenol follows order of increasing cidic strength
Phenol p-Methylphenol p-Nitro phenol m-Nitrophenol
p-Methylphenol Phenol m-Nitro phenol p-Nitrophenol
p-Methylphenol m-Nitro phenol Phenol p-Nitrophenol
m-Methylphenol p-Nitro phenol Phenol and p-Methyl-phenol.
47. Which of the following alcohols will give iodoform test ?
Methanol 1-Butanol
1-Butanol
1-Propanol
2-Butanol.
48. Ketones can be obtained by.
Dehydrogenation of sec-alcohols
Dehydrogenation of pri-alcohols
Oxidation of sec-alcohols
Oxidation of pri-alcohols
49. Brandy is produced by
distillation of wine
mixing alcohol with disprin
mixing alcohol with HCl
distilling ternary mixture of alcohol benzene and water
50. Which of the following compounds does not give positive periodic acid test ?
1 2-Propanediol
2-Propanol
1 2 3-Propanetriol
1 2-Ethanediol.
51. Which of the following contains a higher concentration of hydrogen ions?
Benzyl alcohol
Ethyl alcohol
Methanol
Phenol
52. The final product obtained by the catalytic hydrogenation of phenol is
Benzene
Cyclohexanol
Cyclohexane
Benzyl alcohol.
53. Hydrolysis of glucose to ethyl alcohol can be carried by
zymase
invertase
maltase
sucrose
54. Grignard reagent on reaction with acetone forms
Tertiary alcohol
Secondary alcohol
Acetic acid
Acetaldehyde.
55. Glycol is added tio aviation petrol because
It prevents freezing of petrol
It minimises the loss of petrol
It increases the efficiency of fuel
It prevents the engine from heating up.
56. Amongst the following phenols which is most acidic
Picric acid
2-Nitrophenol
2 4-Dinitrophenol
m-Nitrophenol.
57. Whcih of the following alcohols is the least soluble in water ?
Ethanol
1-Propanol
1-Butanol
1-Pentanol.
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