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It contains objective and assertion-reason type questions with detailed solutions.
Typology: Exercises
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O
PBr Mg CH CH
3 2 2
3
|
3
H O
2
Here, D is [BVP 2004]
(a)
2 3
3
|
3
O CH CH
CH
CH CH
(b)
2 3
3
|
3
CHCH
CH
CH O CH
(c) CHCHOH
CH
CH CH
2 2
3
|
3
(d)
CHOH
CH
CH CH CH
2
3
|
3 2
2. Phenol is more acidic than [Pb. CET 2003]
(a) (b)
(c)
2 2
CH (d) Both (a) and (c)
3. In the reaction,
( ) ( )
3
6 5 3 2
C HCHO CHCO O A
CH COONa
product ( A )
is [Pb. CET 2000]
(a) Acetaldehyde (b) Cinnamic acid
(c) -nephthol (d) Phenol
4. The correct order of ease of dehydration of
following is
[CPMT 2004]
(a) I > II > III (b) III > II > I
(c) I > III > II (d) III > I > II
5
PCl reacts with a compound containing [Pb. CET 2002]
(a)
3
SO group (b) – OH group
(c)
3
NO group (d) – NO group
6. Cumene process is the most important
commercial method for the manufacture of
phenol. Cumene is [KCET 2004]
(a) 1 - methyl ethyl benzene (b) Ethyl benzene
(c) Vinyl benzene (d) Propyl benzene
7. The compound X in the reaction [Roorkee 1999]
is
(a) (b)
(c) (d)
8. Reaction
2
2
acidor base
2
is called [MP PET 2003]
(a) Lederer Manasse reaction
(b) Claisen condensation
(c) Benzoin condensation
(d) Etard reaction
9. When phenol is reacted with
3
CHCl and NaOH
followed by acidification, salicyldehyde is
obtained. Which of the following species are
involved in the above mentioned reaction as inter
mediate [DCE 2000]
(a) (b)
(c) (d) All of these
10. The order of solubility of alkanols in water is
(a) Propanol < Butanol > Pentanol
(b) Propanol > Butanol > Pentanol
(c) Propanol > Butanol < Pentanol
(d) Propanol = Butanol = Pentanol
11. In the following compounds
I
II
II
I
a
390 K
HCl
COONa ON
a
COONa
a
a
3
CCl
2
CHCl
OH
CHCl
|
(I
)
3
(I
I)
2
(II
I)
2
(IV
)
The order of acidity is [IIT-JEE 1996]
(a) III IV I II
(b) I IV III II
(c) II I III IV (d) IV III I II
12. Butanal with dilute NaOH gives [UPSEAT 2000]
(a) CHCHCHCHO
OH
H
CH CHCH CCH
2 2 2
|
|
3 2 2 2
(b) CHCHCHO
O
CH CHCH CCH
2 2
||
3 2 2 2
(c) OHCCH CHCHCHCHCHCHO
2 2 2 2 2 2
(d)
3
|
2
|
|
|
3 2 2
13. The correct order of the solubility of the different
alcohols in water is [Pune CET 1998]
(a) n - propyl alcohol > ethyl alcohol > n - butyl
alcohol
(b) Ethyl alcohol > n - butyl alcohol > n - propyl
alcohol
(c) n - butyl alcohol > n - propyl alcohol > ethyl
alcohol
(d) Ethanol > n - propanol > n - butyl alcohol
14. Which one of the following will most readily be
dehydrated in acidic condition [IIT-JEE (Screening) 2000]
(a) (b)
(c) (d)
15. Which of the following compounds will be most
easily attacked by an electrophile [CBSE PMT 1998, 99]
(a) (b)
(c) (d)
16. Fittig's reaction produces
(a) Alkane (b) Alcohol
(c) Diphenyl (d) Diethyl ether
17. p-cresol reacts with chloroform in alkaline
medium to give the compound A which adds
hydrogen cyanide to form, the compound B. The
latter on acidic hydrolysis gives chiral carboxylic
acid. The structure of the carboxylic acid is
[AIEEE 2005]
(a) (b)
(c) (d)
Cl
3
2
3
2
15. (c) Phenol is most easily attacked by an
electrophile because presence of – OH group
increases electron density at o- and p-
positions.
16. (c) 2 C HCl 2 Na CH CH 2 NaCl
diphenyl
6 5 6 5
ether
Dry
6 5
17. (b)
3
3
CHCl 2
OH
CHCl
3
OH
HCN
H O
3