Download 26 Oxygen Containing Compounds I

Q 1.
Alcohols cannot be prepared from :
(a) C2H5Br + aq. KOH 
LiAIH 4

(b) (CH3)2C = O 
(c)
H 2O
(d) CH 3CH 2Cl 

Q 2.
(a) Reimer-Tiemann reaction
(c) Dakin reaction
Q 3.
Q 4.
This reaction is called:
(b) Liebermann’s nitroso reaction
(d) Leader-Manase reaction
The reaction of isopropylbenzene with oxygen in the presence of a catalytic amount of
HBr followed by treatment with an add gives phenol. The reaction proceeds through the
intermediate formation of:
(a) HOO
(b)
(c)
(d) all of these
The reduction
(a) NaBH4
(b) LiAlH4
can be achieved by using :
(c) CuO.CuCN2O4
(d) none of these
Q 5.
Phenol is soluble in water because:
(a) of weak hydrogen bonding between phenol and water molecules
(b) of intermolecular hydrogen bonding between phenol molecules
(c) it has a higher boiling point than that of water
(d) none of the above
Q 6.
The compound which reacts fastest with Lucas reagent at room temperature is :
(a) 1-butanol
(b) 2-butanol
(c) 2-methy
(d) 2-methylpropan-2ol
Q 7.
Which of the following alcohols cannot be oxidised by potassium dichromate in the
presence of sulphuric acid ?
(a) CH3CH2OH
Q 8.
(b) C6H5CH2OH
(c) C6H5CHOHCH3
Which is not the intermediate stage of following conversion :
(d)
(a)
Q 9.
(b)
(c)
(d)
Among the following compounds, the strongest acid is :
(a) HC = CH
(b) C6H6
(c) C2H6
(d) CH3OH
Q 10. Which of the following reactions are feasible ?
(a)
(b)
(c) Both (a) and (b)
(d) None of the above
Q 11.
the product A is :
(a)
(b)
(c)
(d)
Q 12.
The major product obtained in this reaction is:
(a) (CH3)2CHCH = CH2
(b) (CH3)2C = CH—CH3
(c) 1 : 1 mixture of (a) and (b)
(d) none of the above
Q 13. The reaction
formation of :

is believed to occur through the

(a) CH 3CH 2 O H 2
(b) CH 3 C H 2
(c)
(d) both (b) and (c) above
Q 14. In the following compounds the order of acidic strength is :
(a) III > IV > I > II
(b) I > IV > III > II
Q 15.
(a) Reimer-Tlemann reaction
(c) Sandmeyer reaction
(c) II > I > III > IV
(d) IV > III > I > I
This reaction is called:
(b) Lederer-Manasse reaction
(d) KoIbe’s reaction
Q 16. The major product in the reaction of PhCH2CH(OH)CH(CH3)2 with concentrated H2SO4
is :
(a)
(b)
(c)
(d)
Q 17. Dehydration of the following in increasing order is :
(a) I < II < III < IV
(b) II < III < IV < I
(c) I < II < III < IV
(d) I < IV < II < III
( i ) Hg ( OAc )2 ,THF  H 2O
Q 18. The major product of the following reaction C6 H 5CH  CHCH 3 
 is :
( ii ) NaBH 4
(a)
(b)
(c)
(d)
Q 19. Choose the incorrect statement:
(a) Ordinary ethyl alcohol is known as rectified spirit
(b) The alcohol sold in the market for polishing, etc., is known as methylated spirit
(c) Absolute alcohol is 100% ethanol
(d) Power alcohol is 100% ethanol
Q 20. The reaction of ethanol with concentrated H2SO4 at room temperature gives :
(a) CH3CH2OH 2 HSO 4
(b) CH3CH2OSO2OH
(c) CH3CH2OCH2CH3
(d) H2C = CH2
Q 21.
A and B respectively are:
(a) both
(b) both
(c)
(d)
Q 22. The most unlikely representation of resonance structures of p-nitrophenoxide ion is :
(a)
(b)
Q 23. In the reaction
(a)
(c)
(d)
the product A is :
(b)
(c)
(d)
Q 24. Which of the following reactions will not yield p-ten. Butylphenol ?
(a)
(b)
(c)
(d)
Q 25. Which of the following reactions can be used for the preparation of tert. Butlmethyl ether
?
(a) CH 3 Br  (CH 3 )3 CO  Na  
(b)  CH3  CCl  CH3O Na 
(c)  CH3  OH  CH3Cl 
(d)  CH3  CCl  CH3OH 
Q 26. The reaction of neopentyl alcohol with concentrated HCl gives:
(a) neopentyl chloride
(b) 2-chloro-2-methylbutane
(c) 2-methyl-2-butene
(d) a mixture of neopentyl chloride 2methyl-2-butene
Q 27. Which of the following statements is not correct ?
(a) All alcohols are miscible with water
(b) Only lower alcohols are miscible with water
(c) All alcohols are not poisonous
(d) Methanol is not poisonous
Q 28. In the Lucas test of alcohols, appearance of cloudiness I is due to the formation of:
(a) aldehydes
(b) ketones
(c) acid chlorides
(d) alkyl chlorides
Q 29. Which of the following is the best method for making isopropylmethyl ether?
(a) CH3I + (CH3)2CHOH 
(b) CH3I + (CH3)2CHO- 
(c) (CH3)2CHI + CH3O- 
(d) (CH3)2CHCl + CH3OH 
Q 30. Consider the reaction
A and B respectively are:
(a) 1, 2-epoxycyclohexane, tnzns-2-bromocyclohexanol
(b) 1, 2-epoxycyclohexane, cis-2-bromocydohexanol
(c) trans-2-bromocyclohexanol, 1, 2-epoxyethane
(d) cis-2-bromocyclohexanol 1, 2-epoxyethane
Q 31. Which one of the following will most readily be dehydrated in acidic condition ?
(a)
(b)
(c)
Q 37. In the reaction
(a)
(d)
the product A is :
(b)
(c)
(d)
Q 33. The order of reactivity of the following alcohols
(a) I > II > III > IV
Q 34.
(a) CH3CH2OH
(c) CH3CH2CH2OH
(b) I > III > II > IV
(c) IV > III > II > I
(d) IV > III > I > II
The product obtained in this reaction is :
(b) (CH3)2CHOH
(d) HO-CH2-CH2-CH2-CH2-OH
Q 35. Which of the following represents the Dow process for the manufacture of phenol ?
(a)
(b)
(c)
Answers
1.
8.
15.
22.
29.
d
a
b
c
b
2.
9.
16.
23.
30.
c
d
b
d
a
3.
10.
17.
24.
31.
d
a
a
d
a
4.
11.
18.
25.
32.
a
d
c
a
c
5.
12.
19.
26.
33.
a
b
d
b
c
6.
13.
20.
27.
34.
d
d
b
a
c
7.
14.
21
28
35.
d
d
d
d
a