CPP - SANKALP_ISOM-20-21 & 22-PH-IV
CPP
ISOMERISM (TAUTOMERISM & GEOMETRICAL ISOMERSM) – SHEET - 20 - 21 & 22
LEVEL-1
Q.1
What characteristic is the best common to both cis-2-butene and trans-2-butene?
(A) B.P.
(B) Dipole moment
(C) heat of hydrogenation
(D) Product of hydrogenation
Q.2
The IUPAC name of the compound :
(A) (2E, 4E, 6Z)-octa-2,4,6-triene
(C) (2Z, 4E, 6Z)-octa-2,4,6-triene
(B) (2E, 4E, 6E)-octa-2,4,6-triene
(D) (2Z, 4Z, 6Z)-octa-2,4,6-triene
Q.3
Which of the following does not show geometrical isomerism?
(A) 1, 2-dichloro-1-pentene
(B) 1, 3-dichloro-2-pentene
(C) 1, 1-dichloro-1-pentene
(D) 1, 4-dichloro-2-pentene
Q.4
Tautomer in following is Diad system :
O
(A) CH3COCH3
Q.5
(B) CH3CH2NO2
(C)
(D) HCN
The number of cis-trans isomer possible for the following compound
(A) 2
(B) 4
(C) 6
(D) 8
Q.6
Which of the following have zero dipole moment?
(A) benzene 1,4- diol
(B) trans-1,2-dichloro ethene
(C) cis-1,2-dichloro ethene
(D) 1,1-dichloro ethene
Q.7
Geometrical isomerism is possible in:
(A) isobutene
(C) acetophenone oxime
Q.8
Which of the following will show geometrical isomerism.
(A)
Q.9
(B) acetone oxime
(D) benzophenone oxime
(B)
(C)
(D)
What is the correct IUPAC name of the following compound
(A) 2E, 4E, 6Z 4-methyl oct-2, 4, 6 triene
(C) 2Z, 4Z, 6Z 5-methyl oct-2, 4, 6 triene
(B) 2E, 4Z, 6Z 5-methyl oct-2, 4, 6 triene
(D) 2E, 4Z, 6E 4-methyl oct-2, 4, 6 triene
FIITJEE Ltd., ICES House, Sarvapriya Vihar (Near Hauz Khas Bus Terminal), New Delhi - 16, Ph: 6515949, 6865182, 6854102, Fax: 6513942
CPP - SANKALP_ISOM-20-21 & 22-PH-IV
Q.10 Which of the following will show geometrical isomerism.
Me Br
Me
(A)
(B)
(C)
(D)
Br
Br Me
LEVEL-2
Q.11
Which of the following will not show geometrical isomerism.
Me
Me
(A)
(B)
Me
(C)
Cl
(D)
Q.12 Which of the following does not show geometrical isomerism?
(A) 1, 2-dichloro-1-pentene
(B) 1, 3-dichloro-2-pentene
(C) 1, 1-dichloro-1-pentene
(D) 1, 4-dichloro-2-pentene
Q.13 The IUPAC name of the given compound is
CH3
H
H
H3C
(A) 2, 4-di[(E)-ethylidene] cyclobutane
(C) 1, 4-di-E-ethyldenecyclobutane
(B) 1, 3-di-[(E)-ethylidene] cyclobutane
(D) (E)-1, 4-diethylidenecyclobutane
Q.14 Total number of geometrical isomer of following compound is:
(A) 2
(B) 3
(C) 4
(D) 5
Q.15 Which of the following have zero dipole moment?
(A) p-Dichlorobenzene
(B) Benzene-1, 4-diol
(C) Fumaric acid
(D) Maleic acid
Q.16 The correct statement(s) conceming the structure E, F and G is (are)
H3C
O
H3C
CH3
(E)
H3C
OH
H3C
CH3
(F)
(A) E, F and G are resonance structure
(C) F and G are geometricalisomers
H3C
CH3
H3C
OH
(G)
(B) E, F and E, G are tautomers
(D) F and G are diasteromers
FIITJEE Ltd., ICES House, Sarvapriya Vihar (Near Hauz Khas Bus Terminal), New Delhi - 16, Ph: 6515949, 6865182, 6854102, Fax: 6513942
CPP - SANKALP_ISOM-20-21 & 22-PH-IV
Q.17 Which of the following compounds show tautomerism ?
O
S
(A) NH2—C—NH2
(B) NH2—C—NH2
O
(C) HO
N
O
(D)
CH3—C—CH3
Q.18 Decreasing order of enol content of the following compound in liquid phase
(a)
O
O
||
||
CH 3  C  CH 2  C  O  Et
(c)
O
O
||
||
Ph  C  CH 2  C  Ph
(A) a > b > c > d
O
O
||
||
CH 3  C  CH 2  C  CH 3
(b)
O
(d)
(B) c > b > a > d
(C) c > b > d > a
(D) b > c > a > d
Q.19 Which compound show tautomerism:
O
OH
N
(A)
OH
(B)
(C)
N=O
Q.20 Tautomerism form of this compound is/are:
OH
HO
OH
HO
HO
(A)
HO
O
O
O
O
(C)
OH
OH
O
HO
(D) None of these
OH
(B)
O
OH
O
O
OH
O
HO
OH
OH
(D) All of these
FIITJEE Ltd., ICES House, Sarvapriya Vihar (Near Hauz Khas Bus Terminal), New Delhi - 16, Ph: 6515949, 6865182, 6854102, Fax: 6513942
CPP - SANKALP_ISOM-20-21 & 22-PH-IV
ANSWER KEY (ISOMERISM – SHEET - 20-21 &22)
Q.1
Q.2
Q.3
Q.4
Q.5
Q.6
Q.7
Q.8
Q.9
Q.10
Q.11
Q.12
Q.13
Q.14
Q.15
Q.16
Q.17
Q.18
Q.19
Q.20
B
C
C
D
A
B
C
D
D
A
A
C
B
A
A,C
B, C, D
A, B, C, D
B
A, C
A, B
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