Q.1
On oxidation, an alcohol gives an aldehyde having the same number of carbon atoms as that of alcohol. The alcohol is ... ....
  • a) 1° alcohol
  • b) 2° alcohol
  • c) 3° alcohol
  • d) none of these
Q.2
The starting material for the preparation of CH3I in one step reaction is
  • a) CH3OH
  • b) C2H5OH
  • c) CH3CHO
  • d) CH3COCH3
Q.3
Vinyl carbinol is ... ...
  • a) CH3C(OH) = CH2
    ch-26_qn-243choice_img_no4.png
  • b) HOH2C - CH = CH2
  • c) CH3 - CH = CH - OH
  • d)
Q.4
Glycol is prepared industrially by the following reactions
  • a)
    ch-26_qn-244choice_img_no1.png
  • b)
    ch-26_qn-244choice_img_no2.png
  • c)
    ch-26_qn-244choice_img_no3.png
  • d) none of the above
Q.5
A neutral compound gives red colour with ceric ammonium nitrate. It suggests that the compound has .... ....
  • a) ketone group
  • b) aldehyde group
  • c) ether
  • d) alcoholic group
Q.6
Lucas reactant produces cloudiness immediately with
  • a) n-butanol
  • b) isopropanol
  • c) n-propanol
  • d) tertiary butanol
Q.7
on Q247) Y is
ch-26_que_no-247_img_no1.png
  • a) CH2OH - CH2OH
  • b) CH3OH
  • c) CH3CH2OH
  • d) CH2OH - CH2OH
Q.8
Alcohol is not used in making
  • a) benzene
  • b) acetaldehyde
  • c) chloroform
  • d) chloral
Q.9
han One Correct Answers Q249) Neutral ferric chloride gives violet colour with
  • a) phenol
  • b) cresol
  • c) catechol
  • d) none of these
Q.10
CH3COOH reacts rapidly with .... ..
  • a) (CH3)2CHOH
  • b) CH3CH2OH
  • c) (CH3)3COH
  • d) all of these
Q.11
Which could not be obtained from wood?
  • a) CH3OH
  • b) C2H5OH
  • c) Wood tar
  • d) Wood charcoal
Q.12
Ether in contact with air for a long time from peroxides. The presnce of peroxide in ether can be tested by adding Fe+2 ion in it and then adding ... ...
  • a) KI
  • b) SnCl2
  • c) HgCl2
  • d) KCNS
Q.13
For drying ether, sodium metal can be used, but it cannot be used for drying ethyl alcohol because .... ..
  • a) ether reacts easily with Na
  • b) Na is very reactive
  • c) ethyl alcohol reacts with sodium metal
  • d) none of the above
Q.14
han One Correct Answer Q254)Phenol is less acidic than
  • a) acetic acid
  • b) p-methoxyphenol
  • c) p-nitrophenol
  • d) ethanol
Q.15
Which alcohol is most acidic?
  • a) Ethanol
  • b) Methanol
  • c) Isopropyl alcohol
  • d) t-butyl alcohol
Q.16
C2H5OH cannot be dried by anhydrous CaCl2, because .... ...
  • a) C2H5OH is soluble in water
  • b) C2H5OH reacts with CaCl2
  • c) CaCl2 is soluble in water
  • d) none of the above
Q.17
An organic compound dissolved in dry benzene evolved hydrogen on treatment with sodium. It is ... ....
  • a) a ketone
  • b) an alcohol
  • c) a tertiary amine
  • d) an aldehyde
Q.18
Glycerol on oxidation with bismuth nitrate mainly gives ....
  • a) mesoxalic acid
  • b) oxalic acid
  • c) tartronic acid
  • d) glycerinc acid
Q.19
How many isomers of C5H11OH will be primary alcohols?
  • a) 2
  • b) 3
  • c) 4
  • d) 5
Q.20
Alcoholic fermentation by starch or sugar is brought about bt ... ...
  • a) Sodium bicarbonate
  • b) yeast
  • c) CO2
  • d) phosphates
Q.21
Which of the following statement is incorrect?
  • a) Urease is an enzyme
  • b) Enzymes can catalyse any reaction
  • c) Enzymes are in colloidal state
  • d) Enzymes are catalyst
Q.22
An aldehyde on treatment with Zn/HCl yields
  • a) 1° alcohol
  • b) 2° alcohol
  • c) 3° alcohol
  • d) none of these
Q.23
A compound X with molecular formula C3H8O can be oxidised to a compound Y with the molecular formula C3H6O2 . X is most likely to be
  • a) Ketone
  • b) Primary alcohol
  • c) aldehyde
  • d) secondary alcohol
Q.24
Glycerol on reacting with sodium gives .... ....
  • a) monosodium glycerollate
  • b) disodium glycerollate
  • c) trisodium glycerollate
  • d) none of the above
Q.25
Chlorex which is good solvent for aromatic impurities is .... ...
  • a) dichlorodiethyl ether
  • b) dichlorodimethyl ether
  • c) monochloro ether
  • d) diethyl ether
Q.26
On boiling with conc. hydrobromic acid, phenyl ethyl ether will yield
  • a) bromobenzene and ethane
  • b) bromobenzene and ethanol
  • c) phenol and ethane
  • d) phenol and ethyl bromide
Q.27
When an ether is treated with P2S5 we get ... ...
  • c) thio-alcohol
  • a) thio-ether
  • b) thio-ester
  • d) thio-aldehyde
Q.28
Which will not form yellow precipitate on heating with an alkaline solution of iodine?
  • a) CH3OH
  • b) CH3CH2OH
  • c) CH3CH2CHOHCH3
  • d) CH3CH2CHOHCH3
Q.29
Tertiary alcohol is obtained when Grignard reagent reacts with .... ...
  • a) Butanone
  • b) Propanone
  • c) acetone
  • d) all of the above
Q.30
Ethyl alcohol reacts with HCl but not with HCN because
  • a) C2H5OH is weak base and HCN is weak base
  • b) HCl is strong acid and C2H5OH is weak base
  • c) C2H5OH is strong acid and HCN is weak acid
  • d) C2H5OH is weak acid and HCN is strong acid
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