question_answer 1)
Only two isomers of monochloro product is possible of [IIT-JEE 1986]
A)
n-butane done
clear
B)
2,4-dimethyl pentane done
clear
C)
Benzene done
clear
D)
1-methyl propane done
clear
View Solution play_arrow
question_answer 2)
Which is the example of branch isomerization [NCERT 1976]
A)
\[\underset{{}}{\mathop{\underset{{}}{\mathop{\overset{C}{\mathop{\overset{|}{\mathop{C-C-C}}\,}}\,}}\,}}\,-C\]- C and \[\underset{C}{\mathop{\underset{|}{\mathop{\overset{C}{\mathop{\overset{|}{\mathop{C-C-C}}\,}}\,}}\,}}\,\] done
clear
B)
\[\underset{C}{\mathop{\underset{|}{\mathop{\overset{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C}{\mathop{\overset{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|}{\mathop{C-C-C}}\,}}\,}}\,}}\,\] and \[\underset{C}{\mathop{\underset{|}{\mathop{\overset{C\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{\overset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{C-C-C}}\,}}\,}}\,}}\,\] done
clear
C)
\[\begin{matrix} C \\ C \\ \end{matrix}>C-C-C\] and \[\underset{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C}{\mathop{\underset{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|}{\mathop{\overset{\,\,\,\,\,\,\,\,\,\,\,\,\,\,C}{\mathop{\overset{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|}{\mathop{C-C-C}}\,}}\,}}\,}}\,\] done
clear
D)
\[C-C-C-C\] and \[\underset{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C}{\mathop{\underset{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|}{\mathop{C-C-C}}\,}}\,\] done
clear
View Solution play_arrow
question_answer 3)
The isomer of diethyl ether is [CPMT 1975]
A)
\[{{(C{{H}_{3}})}_{2}}CHOH\] done
clear
B)
\[{{(C{{H}_{3}})}_{3}}C-OH\] done
clear
C)
\[{{C}_{3}}{{H}_{7}}OH\] done
clear
D)
\[{{({{C}_{2}}{{H}_{5}})}_{2}}CHOH\] done
clear
View Solution play_arrow
question_answer 4)
Isomers have essentially identical [CBSE PMT 1988; MP PMT 1983, 86]
A)
Structural formula done
clear
B)
Chemical properties done
clear
C)
Molecular formula done
clear
D)
Physical properties done
clear
View Solution play_arrow
question_answer 5)
Which one of the following shows optical activity [NCERT 1984, 90]
A)
\[HO-\underset{H}{\mathop{\underset{|}{\mathop{\overset{H}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,-COOH\] done
clear
B)
\[C{{H}_{3}}-\underset{Cl}{\mathop{\underset{|}{\mathop{\overset{H}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,-COOH\] done
clear
C)
\[C{{H}_{3}}-\underset{OH\,\,}{\mathop{\underset{|\,\,\,\,\,\,}{\mathop{\overset{C{{H}_{3}}}{\mathop{\overset{|\,\,\,\,\,}{\mathop{C-\,}}\,}}\,}}\,}}\,COOH\] done
clear
D)
\[C{{H}_{3}}-\underset{Cl\,\,\,}{\mathop{\underset{|\,\,\,\,\,\,}{\mathop{\overset{C{{H}_{3}}}{\mathop{\overset{|\,\,\,\,\,\,}{\mathop{C-\,}}\,}}\,}}\,}}\,COOH\] done
clear
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question_answer 6)
In ethane and cyclohexane which one of the following pairs of conformations are more stable
A)
Eclipsed and chair conformations done
clear
B)
Staggered and chair conformations done
clear
C)
Staggered and boat conformations done
clear
D)
Eclipsed and boat conformations done
clear
View Solution play_arrow
question_answer 7)
Which of the following may exist in enantiomorphs [CBSE PMT 1988]
A)
\[C{{H}_{3}}-\overset{C{{H}_{3}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{\overset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{CH-COOH\,}}\,}}\,\] done
clear
B)
\[C{{H}_{2}}=CHC{{H}_{2}}C{{H}_{2}}C{{H}_{3}}\] done
clear
C)
\[C{{H}_{3}}-\overset{N{{H}_{2}}\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{\overset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{CH-C{{H}_{3}}\,}}\,}}\,\] done
clear
D)
\[C{{H}_{3}}-C{{H}_{2}}-\overset{N{{H}_{2}}\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{\overset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{CH-C{{H}_{3}}}}\,}}\,\] done
clear
View Solution play_arrow
question_answer 8)
Which of the following compounds may not exist as enantiomers [CPMT 1987]
A)
\[C{{H}_{3}}CH(OH)C{{O}_{2}}H\] done
clear
B)
\[C{{H}_{3}}C{{H}_{2}}CH(C{{H}_{3}})C{{H}_{2}}OH\] done
clear
C)
\[{{C}_{6}}{{H}_{5}}C{{H}_{2}}C{{H}_{3}}\] done
clear
D)
\[{{C}_{6}}{{H}_{5}}CHClC{{H}_{3}}\] done
clear
View Solution play_arrow
question_answer 9)
Number of isomers of molecular formula \[{{C}_{2}}{{H}_{2}}B{{r}_{2}}\] are [CPMT 1987]
A)
1 done
clear
B)
2 done
clear
C)
3 done
clear
D)
0 done
clear
View Solution play_arrow
question_answer 10)
Lactic acid shows which type of isomerism [CPMT 1987; MP PMT 1987; BHU 2003]
A)
Geometrical isomerism done
clear
B)
Tautomerism done
clear
C)
Optical isomerism done
clear
D)
Metamerism done
clear
View Solution play_arrow
question_answer 11)
Which one of the following is an optically active compound [CBSE PMT 1988; DPMT 1983]
A)
n-propanol done
clear
B)
2-chlorobutane done
clear
C)
n-butanol done
clear
D)
4-hydroxyheptane done
clear
View Solution play_arrow
question_answer 12)
Compounds with same molecular formula but different structural formulae are called [BHU 1979; AFMC 1989]
A)
Isomers done
clear
B)
Isotopes done
clear
C)
Isobars done
clear
D)
Isoelectronic done
clear
View Solution play_arrow
question_answer 13)
Which one of the following compounds shows optical isomerism [MP PET 1990]
A)
\[C{{H}_{3}}CHCl-C{{H}_{2}}-C{{H}_{3}}\] done
clear
B)
\[C{{H}_{3}}-C{{H}_{2}}-CHCl-C{{H}_{2}}-C{{H}_{3}}\] done
clear
C)
\[ClC{{H}_{2}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{3}}\] done
clear
D)
\[ClC{{H}_{2}}-C{{H}_{2}}-C{{H}_{3}}\] done
clear
View Solution play_arrow
question_answer 14)
Which one of the following objects is ?achiral?
A)
Letter P done
clear
B)
Letter F done
clear
C)
Ball done
clear
D)
A pair of hand done
clear
View Solution play_arrow
question_answer 15)
Total number of isomers of a disubstituted benzene compound is
A)
1 done
clear
B)
2 done
clear
C)
3 done
clear
D)
4 done
clear
View Solution play_arrow
question_answer 16)
Separating of d and l enantiomorphs from a racemic mixture is called [CBSE PMT 1988; DPMT 1983; KCET 2002]
A)
Resolution done
clear
B)
Dehydration done
clear
C)
Rotation done
clear
D)
Dehydrohalogenation done
clear
View Solution play_arrow
question_answer 17)
Number of optical isomers of lactic acid are
A)
1 done
clear
B)
2 done
clear
C)
3 done
clear
D)
4 done
clear
View Solution play_arrow
question_answer 18)
Which one of the following contains asymmetric carbon atom [IIT-JEE 1989; Roorkee 2000]
A)
\[H-\underset{H\,\,}{\mathop{\ \underset{|\,\,\,\,}{\mathop{\overset{Cl\,\,}{\mathop{\overset{|\,\,\,\,\,}{\mathop{C-\,}}\,}}\,}}\,}}\,\underset{H\,\,}{\mathop{\underset{|\,\,\,\,}{\mathop{\overset{Br\,\,}{\mathop{\overset{|\,\,\,\,\,}{\mathop{C-\,}}\,}}\,}}\,}}\,H\] done
clear
B)
\[H-\underset{H\,\,}{\mathop{\underset{|\,\,\,\,}{\mathop{\overset{H\,\,\,}{\mathop{\overset{|\,\,\,\,\,}{\mathop{C-\,}}\,}}\,}}\,}}\,\underset{H\,\,}{\mathop{\underset{|\,\,\,\,}{\mathop{\overset{Cl\,\,}{\mathop{\overset{|\,\,\,\,\,}{\mathop{C-\,}}\,}}\,}}\,}}\,Cl\] done
clear
C)
\[H-\underset{H\,\,}{\mathop{\underset{|\,\,\,\,}{\mathop{\overset{H\,\,}{\mathop{\overset{|\,\,\,\,\,}{\mathop{C-\,}}\,}}\,}}\,}}\,\underset{H\,\,}{\mathop{\underset{|\,\,\,\,}{\mathop{\overset{H\,\,}{\mathop{\overset{|\,\,\,\,\,}{\mathop{C-\,}}\,}}\,}}\,}}\,H\] done
clear
D)
\[H-\underset{Br\,\,}{\mathop{\underset{|\,\,\,\,}{\mathop{\overset{H\,\,}{\mathop{\overset{|\,\,\,\,\,}{\mathop{C-\,}}\,}}\,}}\,}}\,\underset{OH\,\,}{\mathop{\underset{|\,\,\,\,}{\mathop{\overset{H\,\,\,\,}{\mathop{\overset{|\,\,\,\,\,}{\mathop{C-\,}}\,}}\,}}\,}}\,C{{H}_{3}}\] done
clear
View Solution play_arrow
question_answer 19)
n-butane and isobutane are examples of
A)
Chain isomers done
clear
B)
Geometrical isomers done
clear
C)
Position isomers done
clear
D)
Tautomers done
clear
View Solution play_arrow
question_answer 20)
Which of the following has chiral structure
A)
\[C{{H}_{3}}-\overset{C{{H}_{3}}\,\,}{\mathop{\overset{|\,\,\,\,\,\,\,\,\,}{\mathop{CH-\,}}\,}}\,C{{H}_{2}}COOH\] done
clear
B)
\[C{{H}_{3}}-CH=CH-C{{H}_{3}}\] done
clear
C)
\[C{{H}_{3}}-\overset{C{{H}_{3}}}{\mathop{\overset{|\,\,\,\,\,\,\,\,}{\mathop{CH-\,}}\,}}\,C{{H}_{2}}OH\] done
clear
D)
\[C{{H}_{3}}-CHOH-C{{H}_{2}}C{{H}_{3}}\] done
clear
View Solution play_arrow
question_answer 21)
Which of the following pairs is an example of position isomerism
A)
\[C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{3}}\] and \[C{{H}_{3}}-\underset{C{{H}_{3}}\,\,}{\mathop{\underset{|\,\,\,\,\,\,\,\,}{\mathop{CH-}}\,}}\,C{{H}_{3}}\] done
clear
B)
\[C{{H}_{3}}-C{{H}_{2}}-CH=C{{H}_{2}}\] and \[C{{H}_{3}}-CH=CH-C{{H}_{3}}\] done
clear
C)
\[C{{H}_{3}}-C{{H}_{2}}OH\] and \[C{{H}_{3}}-O-C{{H}_{3}}\] done
clear
D)
\[C{{H}_{3}}-\underset{C{{H}_{3}}\,\,\,\,\,\,\,\,}{\mathop{\underset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{\overset{C{{H}_{3}}\,\,\,\,\,\,\,\,}{\mathop{\overset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{C-C{{H}_{3}}\,}}\,}}\,}}\,}}\,\]and\[C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{3}}\] done
clear
View Solution play_arrow
question_answer 22)
Geometrical isomerism is shown by [IIT-JEE 1983; CPMT 1990, 94; CBSE PMT 1992; MP PET 1997; AMU (Engg.) 1999]
A)
2-butene done
clear
B)
2-butyne done
clear
C)
2-butanol done
clear
D)
Butanal done
clear
View Solution play_arrow
question_answer 23)
An organic compound exhibits optical isomerism when [CPMT 1971, 78, 81; MP PET 1999]
A)
Four groups linked to carbon atom are different done
clear
B)
Three groups linked to carbon atom are different done
clear
C)
Two groups linked to carbon atom are different done
clear
D)
All the groups linked to carbon atom are same done
clear
View Solution play_arrow
question_answer 24)
Which one of the following exhibits geometrical isomerism [NCERT 1979; DPMT 1984; CBSE PMT 1990]
A)
\[\begin{matrix} \ \ \ \ H \\ {{H}_{3}}C \\ \end{matrix}>C=C<\begin{matrix} H\ \ \ \\ C{{H}_{3}} \\ \end{matrix}\] done
clear
B)
\[\begin{matrix} {{C}_{2}}H \\ \,\,\,\ H \\ \end{matrix}>C=C<\begin{matrix} H \\ H \\ \end{matrix}\] done
clear
C)
\[\begin{matrix} C{{H}_{3}} \\ C{{H}_{3}} \\ \end{matrix}>C=C<\begin{matrix} H \\ H \\ \end{matrix}\] done
clear
D)
\[H-\overset{C{{H}_{3}}}{\mathop{\underset{H}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}\,\ -}}\,\underset{H}{\mathop{\underset{|}{\mathop{C}}\,}}\,=C<\begin{matrix} H \\ H \\ \end{matrix}\] done
clear
View Solution play_arrow
question_answer 25)
Maximum number of isomers of alkene \[{{C}_{4}}{{H}_{8}}\] are [IIT-JEE 1982; MP PMT 1985; MADT Bihar 1995; Kerala (Engg.) 2002]
A)
2 done
clear
B)
3 done
clear
C)
4 done
clear
D)
6 done
clear
View Solution play_arrow
question_answer 26)
Rotation of plane polarised light is measured by [CPMT 1985; DCE 2001]
A)
Manometer done
clear
B)
Polari meter done
clear
C)
Viscometer done
clear
D)
Refractometer done
clear
View Solution play_arrow
question_answer 27)
An alkane forms isomers if the number of least carbon atom is [CPMT 1976; BHU 1985, 89]
A)
1 done
clear
B)
2 done
clear
C)
3 done
clear
D)
4 done
clear
View Solution play_arrow
question_answer 28)
Which is not found in alkenes [AIIMS 1982; RPMT 1999]
A)
Chain isomerism done
clear
B)
Geometrical isomerism done
clear
C)
Metamerism done
clear
D)
Position isomerism done
clear
View Solution play_arrow
question_answer 29)
How many isomers of \[{{C}_{5}}{{H}_{11}}OH\] will be primary alcohols [CBSE PMT 1992]
A)
2 done
clear
B)
3 done
clear
C)
4 done
clear
D)
5 done
clear
View Solution play_arrow
question_answer 30)
The compound \[{{C}_{4}}{{H}_{10}}O\] can show [IIT-JEE 1981; MP PET 2000]
A)
Metamerism done
clear
B)
Functional isomerism done
clear
C)
Positional isomerism done
clear
D)
All types done
clear
View Solution play_arrow
question_answer 31)
The number of possible alcoholic isomers for \[{{C}_{4}}{{H}_{10}}O\] are [DPMT 1984; MNR 1986]
A)
4 done
clear
B)
2 done
clear
C)
3 done
clear
D)
5 done
clear
View Solution play_arrow
question_answer 32)
How many isomers are possible for \[{{C}_{4}}{{H}_{8}}O\] [MNR 1992; UPSEAT 2001, 02]
A)
3 done
clear
B)
4 done
clear
C)
5 done
clear
D)
6 done
clear
View Solution play_arrow
question_answer 33)
Which of the following can exhibit cis-trans isomerism [CBSE PMT 1989]
A)
HC \[\equiv \] CH done
clear
B)
ClCH = CHCl done
clear
C)
\[C{{H}_{3}}.CHCl.COOH\] done
clear
D)
\[ClC{{H}_{2}}-C{{H}_{2}}Cl\] done
clear
View Solution play_arrow
question_answer 34)
The number of geometrical isomers in case of a compound with the structure \[C{{H}_{3}}-CH=CH-CH=CH-{{C}_{2}}{{H}_{5}}\] is [NCERT 1980]
A)
4 done
clear
B)
3 done
clear
C)
2 done
clear
D)
5 done
clear
View Solution play_arrow
question_answer 35)
The property by virtue of which a compound can turn the plane polarised light is known as [BHU 1979]
A)
Photolysis done
clear
B)
Phosphorescence done
clear
C)
Optical activity done
clear
D)
Polarization done
clear
View Solution play_arrow
question_answer 36)
Meso-tartaric acid is optically inactive due to the presence of [AIIMS 1982; MP PMT 1987]
A)
Molecular symmetry done
clear
B)
Molecular asymmetry done
clear
C)
External compensation done
clear
D)
Two asymmetric C-atoms done
clear
View Solution play_arrow
question_answer 37)
Which of the following compounds exhibits optical isomerism [BHU 1983; AFMC 1990; CPMT 1993; MP PMT 1999, 2000]
A)
\[C{{H}_{3}}C{{H}_{2}}COOH\] done
clear
B)
\[C{{H}_{3}}CHOHCOOH\] done
clear
C)
\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}OH\] done
clear
D)
\[C{{H}_{3}}CHOHC{{H}_{3}}\] done
clear
View Solution play_arrow
question_answer 38)
The maximum number of stereoisomers possible for 2-hydroxy-2-methyl butanoic acid is [Roorkee 1992]
A)
1 done
clear
B)
2 done
clear
C)
3 done
clear
D)
4 done
clear
View Solution play_arrow
question_answer 39)
Which one of the following pairs represents the stereoisomerism [AIIMS 1992]
A)
Geometrical isomerism, position isomerism done
clear
B)
Geometrical isomerism, conformational isomerism done
clear
C)
Optical isomerism, geometrical isomerism done
clear
D)
Optical isomerism, metamerism done
clear
View Solution play_arrow
question_answer 40)
Diethyl ether is not associated with which one of these isomers [AFMC 1993]
A)
Butanoic acid done
clear
B)
Methyl propionate done
clear
C)
Steroisomerism done
clear
D)
None of these done
clear
View Solution play_arrow
question_answer 41)
Diethyl ether and methyl n-propyl ether are [MP PET 1994; AFMC 1999; MP PMT 2002]
A)
Position isomers done
clear
B)
Functional isomers done
clear
C)
Metamers done
clear
D)
Chain isomers done
clear
View Solution play_arrow
question_answer 42)
n-propyl alcohol and isopropyl alcohol are examples of [MP PMT 1994]
A)
Position isomerism done
clear
B)
Chain isomerism done
clear
C)
Tautomerism done
clear
D)
Geometrical isomerism done
clear
View Solution play_arrow
question_answer 43)
It is possible to distinguish between optical isomers by [Manipal MEE 1995; AFMC 1995]
A)
Infrared spectroscopy done
clear
B)
Mass spectrometry done
clear
C)
Melting point determination done
clear
D)
Polarimetry done
clear
View Solution play_arrow
question_answer 44)
The isomerism exhibited by alkyl cyanide and alkyl isocyanide is [AFMC 1995, 97]
A)
Functional done
clear
B)
Positional done
clear
C)
Tautomerism done
clear
D)
Metamerism done
clear
View Solution play_arrow
question_answer 45)
The following compound can exhibits \[\begin{matrix} C{{H}_{3}} \\ C{{H}_{3}} \\ \end{matrix}>\underset{\begin{smallmatrix} \\ \ \ C{{H}_{3}} \end{smallmatrix}}{\mathop{C=C}}\,\underset{\cancel{\,\,\,\,\,\,\,\,\,\,}}{\overset{{}}{\mathop{<}}}\,\begin{matrix} H \\ C< \\ \end{matrix}\begin{matrix} \underset{H\ \ \ \ \ \,}{\mathop{{}}}\, \\ \underset{COOH}{\mathop{{}}}\, \\ \end{matrix}\] [IIT-JEE 1995; DCE 2000]
A)
Tautomerism done
clear
B)
Optical isomerism done
clear
C)
Geometrical isomerism done
clear
D)
Geometrical and optical isomerisms done
clear
View Solution play_arrow
question_answer 46)
Name the compound, that is not isomer with diethyl ether [IIT-JEE 1981; CPMT 1989; MADT Bihar 1995]
A)
n-propylmethyl ether done
clear
B)
Butane-1-ol done
clear
C)
2-methylpropane-2-ol done
clear
D)
Butanone done
clear
View Solution play_arrow
question_answer 47)
Which statement is true for cyclohexane [MP PET 1996]
A)
It has two possible isomers done
clear
B)
It has three conformations done
clear
C)
Boat conformation is most stable done
clear
D)
Chair and boat conformations differ in energy by 44 kJ/mol done
clear
View Solution play_arrow
question_answer 48)
Two compounds have the structural formulae \[C{{H}_{3}}-O-C{{H}_{2}}C{{H}_{3}}\] and \[C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}OH\]. The above is an example of
A)
Metamerism done
clear
B)
Functional isomerism done
clear
C)
Positional isomerism done
clear
D)
Chain isomerism done
clear
View Solution play_arrow
question_answer 49)
Which of the following pairs are not isomeric compounds
A)
Ethyl ethanoate and methyl propanoate done
clear
B)
Butanone and butanal done
clear
C)
Ethoxy propane and propoxy ethane done
clear
D)
Methoxy methane and ethanol done
clear
View Solution play_arrow
question_answer 50)
Functional isomerism is exhibited by the following pair of compounds
A)
Acetone, propionaldehyde done
clear
B)
Diethyl ether, methyl propyl ether done
clear
C)
Butane, isobutane done
clear
D)
1-butene, 2-butene done
clear
View Solution play_arrow
question_answer 51)
The total number of possible isomeric trimethyl benzene is [MP PET 1997]
A)
2 done
clear
B)
3 done
clear
C)
4 done
clear
D)
6 done
clear
View Solution play_arrow
question_answer 52)
Optically active isomers but not mirror images are called [MP PET 1999]
A)
Enantiomers done
clear
B)
Mesomers done
clear
C)
Tautomers done
clear
D)
Diastereoisomers done
clear
View Solution play_arrow
question_answer 53)
\[{{C}_{7}}{{H}_{9}}N\] has how many isomeric forms that contain a benzene ring [CPMT 1997, 99; JIPMER 2002; DCE 2003]
A)
4 done
clear
B)
5 done
clear
C)
6 done
clear
D)
7 done
clear
View Solution play_arrow
question_answer 54)
The total number of isomers formed by \[{{C}_{5}}{{H}_{10}}\] is [Bihar MEE 1996]
A)
2 done
clear
B)
3 done
clear
C)
4 done
clear
D)
5 done
clear
E)
None of these done
clear
View Solution play_arrow
question_answer 55)
Which of the following contains asymmetric centre [CPMT 1996]
A)
2-butene done
clear
B)
2, 2-dimethylpropane done
clear
C)
2-hexyne done
clear
D)
Lactic acid done
clear
View Solution play_arrow
question_answer 56)
Which of the following cannot be given to exemplify chiral structure [JIPMER 1997]
A)
A shoe done
clear
B)
A screw done
clear
C)
A screw driver done
clear
D)
All of these done
clear
View Solution play_arrow
question_answer 57)
Which of the following is expected to be optically active [JIPMER 1997]
A)
\[{{(C{{H}_{3}})}_{4}}C\] done
clear
B)
\[{{C}_{2}}{{H}_{5}}CH(C{{H}_{3}}){{C}_{3}}{{H}_{7}}\] done
clear
C)
\[{{({{C}_{2}}{{H}_{5}})}_{2}}CHC{{H}_{3}}\] done
clear
D)
\[C{{H}_{3}}CH=CHC{{H}_{3}}\] done
clear
View Solution play_arrow
question_answer 58)
Which compound does not show geometrical isomerism [RPMT 1997]
A)
2-butene done
clear
B)
2-pentene done
clear
C)
2,3-dibromo-2-butene done
clear
D)
2-methyl propene done
clear
View Solution play_arrow
question_answer 59)
The isomers which can be converted into another forms by rotation of the molecules around single bond are [AIIMS 1997]
A)
Geometrical isomers done
clear
B)
Conformers done
clear
C)
Enantiomers done
clear
D)
Diastereomers done
clear
View Solution play_arrow
question_answer 60)
The number of enantiomers of the compound \[C{{H}_{3}}CHBrCHBrCOOH\] is [AIIMS 1997]
A)
0 done
clear
B)
1 done
clear
C)
3 done
clear
D)
4 done
clear
View Solution play_arrow
question_answer 61)
\[{{C}_{6}}{{H}_{5}}C\equiv N\] and \[{{C}_{6}}{{H}_{5}}N\equiv C\] exhibit which type of isomerism [CPMT 1997]
A)
Position done
clear
B)
Functional done
clear
C)
Dextro isomerism done
clear
D)
Metamerism done
clear
View Solution play_arrow
question_answer 62)
Which of the following compounds is not chiral [CBSE PMT 1998; DPMT 2002]
A)
\[DC{{H}_{2}}C{{H}_{2}}C{{H}_{2}}Cl\] done
clear
B)
\[C{{H}_{3}}C{{H}_{2}}CHDCl\] done
clear
C)
\[C{{H}_{3}}CHDC{{H}_{2}}C{{H}_{2}}Cl\] done
clear
D)
\[C{{H}_{2}}CHClC{{H}_{2}}D\] done
clear
View Solution play_arrow
question_answer 63)
cis and trans 2-butene are [BHU 1998; DPMT 2002]
A)
Conformational isomers done
clear
B)
Optical isomers done
clear
C)
Position isomers done
clear
D)
Geometrical isomers done
clear
View Solution play_arrow
question_answer 64)
Which one of the following is the chiral molecule [BHU 1998; 2005]
A)
\[C{{H}_{3}}Cl\] done
clear
B)
\[C{{H}_{2}}C{{l}_{2}}\] done
clear
C)
\[CHB{{r}_{3}}\] done
clear
D)
\[CHClBrI\] done
clear
View Solution play_arrow
question_answer 65)
Cyanide and isocyanide are isomers of type [AFMC 1997]
A)
Positional done
clear
B)
Functional done
clear
C)
Tautomer done
clear
D)
Structural done
clear
View Solution play_arrow
question_answer 66)
Glucose and fructose are [AMU (Engg.) 1999]
A)
Optical isomers done
clear
B)
Functional isomers done
clear
C)
Position isomers done
clear
D)
Chain isomers done
clear
View Solution play_arrow
question_answer 67)
Which of the following compounds which is an optically active compound [UPSEAT 1999]
A)
1-butanol done
clear
B)
2-butanol done
clear
C)
3-butanol done
clear
D)
4-heptanol done
clear
View Solution play_arrow
question_answer 68)
d-tartaric acid and l-tartaric acid are [MH CET 1999]
A)
Enantiomers done
clear
B)
Tautomers done
clear
C)
Diastereoisomers done
clear
D)
Structural isomers done
clear
View Solution play_arrow
question_answer 69)
Minimum resistance in bond rotation will be observed in the compound [RPMT 1999]
A)
Hexachloroethane done
clear
B)
Ethylene done
clear
C)
Acetylene done
clear
D)
Ethane done
clear
View Solution play_arrow
question_answer 70)
Which pair show cis-trans isomerism [RPET 1999]
A)
Maleic-fumaric acid done
clear
B)
Lactic-tartaric acid done
clear
C)
Malonic-succinic acid done
clear
D)
Crotonic-acrylic acid done
clear
View Solution play_arrow
question_answer 71)
1, 2-Dichloroethene shows [RPET 1999]
A)
Geometrical isomerism done
clear
B)
Optical isomerism done
clear
C)
Ring-chain isomerism done
clear
D)
Resonance done
clear
View Solution play_arrow
question_answer 72)
Which compound is optically active [DCE 1999]
A)
4-chloro, 1 hydroxy butane done
clear
B)
\[{{3}^{o}}\]-butyl alcohol done
clear
C)
Secondary butyl amine done
clear
D)
n-butyl alcohol done
clear
View Solution play_arrow
question_answer 73)
Choose the pair of chain isomer [RPMT 2000]
A)
\[C{{H}_{3}}CHB{{r}_{2}}\] and \[C{{H}_{2}}BrC{{H}_{2}}Br\] done
clear
B)
1-propanol and 2-propanol done
clear
C)
Neo-pentane and isopentane done
clear
D)
Diethyl ether and methyl-n-propyl ether done
clear
View Solution play_arrow
question_answer 74)
Optical isomerism arises due to the presence of [RPMT 2000]
A)
An asymmetric carbon atom done
clear
B)
Centre of symmetry done
clear
C)
Axis of symmetry done
clear
D)
Plane of symmetry done
clear
View Solution play_arrow
question_answer 75)
Least hindered rotation about carbon-carbon bond is observed in [RPMT 2000]
A)
Ethane done
clear
B)
Ethylene done
clear
C)
Ethyne done
clear
D)
Hexachloroethane done
clear
View Solution play_arrow
question_answer 76)
Which pair represents chain isomer [RPMT 2000]
A)
\[C{{H}_{3}}CHC{{l}_{2}}\] and \[ClC{{H}_{2}}C{{H}_{2}}Cl\] done
clear
B)
n-propyl alcohol and isopropyl alcohol done
clear
C)
2-methyl-1 propanol and 2-Methyl-2 propanol done
clear
D)
2-methyl butane and neopentane done
clear
View Solution play_arrow
question_answer 77)
Which of the following compounds will exhibit geometrical isomerism [IIT-JEE Screening 2000]
A)
1-phenyl-2-butene done
clear
B)
3-phenyl-1-butene done
clear
C)
2-phenyl-1-butene done
clear
D)
1, 1-Diphenyl-1-propene done
clear
View Solution play_arrow
question_answer 78)
On bromination, propionic acid yields two isomeric 2-bromopropionic acids. This pair is an important example of [BHU 2000]
A)
Chain isomers done
clear
B)
Optical isomers done
clear
C)
Cis-trans isomers done
clear
D)
Position isomers done
clear
View Solution play_arrow
question_answer 79)
Geometrical isomerism is not possible in [CPMT 2000]
A)
Propene done
clear
B)
3-hexane done
clear
C)
Butenedioic acid done
clear
D)
Cyclic compound done
clear
View Solution play_arrow
question_answer 80)
Only two isomeric monochloro derivatives are possible for [Pb. PMT 2000]
A)
2-methyl propane done
clear
B)
n-pentane done
clear
C)
Benzene done
clear
D)
2, 4-dimethyl pentane done
clear
View Solution play_arrow
question_answer 81)
Lactic acid in which a methyl group, a hydroxyl group, a carboxylic acid group and a hydrogen atom are attached to a central carbon atom, shown optical isomerism due to the molecular geometry at the [Pb. PMT 2000]
A)
Central carbon atom done
clear
B)
Carbon atom of the methyl group done
clear
C)
Carbon atom of the carboxylic acid group done
clear
D)
Oxygen of the hydroxyl groups done
clear
View Solution play_arrow
question_answer 82)
The number of possible alkynes with molecular formula \[{{C}_{5}}{{H}_{8}}\] is [MP PMT 2000]
A)
2 done
clear
B)
3 done
clear
C)
4 done
clear
D)
5 done
clear
View Solution play_arrow
question_answer 83)
Which of the following will not lose asymmetry on reduction with \[LiAl{{H}_{4}}\] [Roorkee 2000]
A)
\[HO{{H}_{2}}C\begin{matrix} \,\,\,CHO\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\ +C{{H}_{2}}C{{H}_{3}} \\ \,\,\,\,\,\,CH=C{{H}_{2}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\ \end{matrix}\] done
clear
B)
\[{{H}_{2}}C=HCO\,\,\,+\,\,\,\begin{matrix} \,\,\,\,C{{H}_{3}}\,\,\,\,\,\,\, \\ \,\,\,\,\,\,\,\,\,CHO \\ \,\,\,\,C{{H}_{2}}C{{H}_{3}} \\ \end{matrix}\] done
clear
C)
\[HO{{H}_{2}}C+\begin{matrix} C{{H}_{3}}\,\,\,\,\,\, \\ \,\,\,\,\,\,\,\,\,COOH \\ C\equiv CH\,\,\, \\ \end{matrix}\] done
clear
D)
\[{{H}_{3}}C+\begin{matrix} CHO\,\,\,\,\,\,\,\, \\ \,\,\,\,\,\,\,\,\,\,\,C\equiv N \\ C{{H}_{2}}N{{H}_{2}} \\ \end{matrix}\] done
clear
View Solution play_arrow
question_answer 84)
Reason for geometrical isomerism by 2-butene is [CBSE PMT 2000]
A)
Chiral carbon done
clear
B)
Free rotation about single bond done
clear
C)
Free rotation about double bond done
clear
D)
Restricted rotation about double bond done
clear
View Solution play_arrow
question_answer 85)
Stereoisomers which are not the mirror images of one another are called [RPMT 2000]
A)
Enantiomers done
clear
B)
Mesomers done
clear
C)
Tautomers done
clear
D)
Diasteroisomers done
clear
View Solution play_arrow
question_answer 86)
The isomerism shown by n-butyl alcohol and isobutyl alcohol is [RPMT 2000]
A)
Metamerism done
clear
B)
Chain done
clear
C)
Position done
clear
D)
Stereo done
clear
View Solution play_arrow
question_answer 87)
Which is optically active [MH CET 2001]
A)
\[C{{H}_{2}}C{{l}_{2}}\] done
clear
B)
\[CHC{{l}_{3}}\] done
clear
C)
Meso form of tartaric acid done
clear
D)
Glyceraldehyde done
clear
View Solution play_arrow
question_answer 88)
Which of the following will show geometrical isomerism [CPMT 2001; BHU 2005]
A)
\[C{{H}_{3}}CH=CHC{{H}_{3}}\] done
clear
B)
\[{{(C{{H}_{3}})}_{2}}C=C\,{{(C{{H}_{3}})}_{2}}\] done
clear
C)
\[{{N}_{2}}O.FeS{{O}_{4}}\] done
clear
D)
\[C{{H}_{3}}-CH=C\,{{(C{{H}_{3}})}_{2}}\] done
clear
View Solution play_arrow
question_answer 89)
What is the maximum number of open chain structures possible for \[{{C}_{4}}{{H}_{8}}\] [MP PET 2001]
A)
2 done
clear
B)
3 done
clear
C)
4 done
clear
D)
1 done
clear
View Solution play_arrow
question_answer 90)
Glucose has optical isomers [DCE 2001]
A)
8 done
clear
B)
12 done
clear
C)
16 done
clear
D)
Cannot be predicted done
clear
View Solution play_arrow
question_answer 91)
An organic compound \[^{1}C{{H}_{3}}{{-}^{2}}C{{H}_{2}}{{-}^{3}}C{{H}_{2}}{{-}^{4}}C{{H}_{2}}{{-}^{5}}C{{H}_{2}}{{-}^{6}}C{{H}_{2}}{{-}^{7}}C{{H}_{3}}\] To make it chiral compound the attack should be on which carbon atom [DCE 2001]
A)
1 done
clear
B)
3 done
clear
C)
4 done
clear
D)
7 done
clear
View Solution play_arrow
question_answer 92)
Which of the following statements is not true about enantiomers [DCE 2001]
A)
They have same physical properties done
clear
B)
They have different biological properties done
clear
C)
They have same chemical properties towards chiral compounds done
clear
D)
None of these done
clear
View Solution play_arrow
question_answer 93)
Meso-tartaric acid is [BHU 2001]
A)
Optically inactive done
clear
B)
Optically active because of molecular symmetry done
clear
C)
Optically inactive due to external compensation done
clear
D)
Optically active because of asymmetric carbon atom done
clear
View Solution play_arrow
question_answer 94)
The number of possible isomers of the compound with molecular formula \[{{C}_{7}}{{H}_{8}}O\] is [BHU 2001]
A)
3 done
clear
B)
5 done
clear
C)
7 done
clear
D)
9 done
clear
View Solution play_arrow
question_answer 95)
The number of isomers for the compound with molecular formula \[{{C}_{2}}BrClFI\]is [IIT-JEE (Screening) 2001]
A)
3 done
clear
B)
4 done
clear
C)
5 done
clear
D)
6 done
clear
View Solution play_arrow
question_answer 96)
Hydrogenation of the adjoining compound in the presence of poisoned palladium catalyst gives [IIT-JEE (Screening) 2001]
A)
An optically active compound done
clear
B)
An optically inactive compound done
clear
C)
A racemic mixture done
clear
D)
A diastereomeric mixture done
clear
View Solution play_arrow
question_answer 97)
The number of possible structural isomers for a compound with the molecular formula \[{{C}_{7}}{{H}_{16}}\] is [DCE 2001]
A)
8 done
clear
B)
9 done
clear
C)
10 done
clear
D)
12 done
clear
View Solution play_arrow
question_answer 98)
Which of the following molecule contains asymmetric carbon atom [JIPMER 2002]
A)
\[C{{H}_{3}}CHClCOOH\] done
clear
B)
\[C{{H}_{3}}C{{H}_{2}}COOH\] done
clear
C)
\[ClC{{H}_{2}}C{{H}_{2}}COOH\] done
clear
D)
\[C{{l}_{2}}CHCOOH\] done
clear
View Solution play_arrow
question_answer 99)
A similarity between optical and geometrical isomerism is that [AIEEE 2002]
A)
Each forms equal number of isomers for a given compound done
clear
B)
If in a compound one is present then so is the other done
clear
C)
Both are included in stereoisomerism done
clear
D)
They have no similarity done
clear
View Solution play_arrow
question_answer 100)
If the light waves pass through a nicol prism then all the oscillations occur only in one plane, such beam of light is called as [Kerala (Med.) 2002]
A)
Non-polarised light done
clear
B)
Plane polarised light done
clear
C)
Polarised light done
clear
D)
Optical light done
clear
View Solution play_arrow
question_answer 101)
Racemic mixture is formed by mixing two [AIEEE 2002]
A)
Isomeric compounds done
clear
B)
Chiral compounds done
clear
C)
Meso compounds done
clear
D)
Optical isomers done
clear
View Solution play_arrow
question_answer 102)
Which of the following does not show geometrical isomerism [AIEEE 2002]
A)
1, 2 dichloro-1-pentene done
clear
B)
1, 3-dichloro-2-pentene done
clear
C)
1, 1-dichloro-1-pentene done
clear
D)
1, 4-dichloro-2-pentene done
clear
View Solution play_arrow
question_answer 103)
\[\underset{H}{\overset{{{H}_{3}}C}{\mathop{{}}}}\,>C=C<\underset{H}{\overset{C{{H}_{3}}}{\mathop{{}}}}\,\] and \[\begin{matrix} {{H}_{3}}C & {} & H \\ {} & >C=C< & {} \\ \,\,\,\,H & {} & C{{H}_{3}} \\ \end{matrix}\]exhibit which isomerism [MP PET 2002]
A)
Position isomerism done
clear
B)
Geometrical isomerism done
clear
C)
Optical isomerism done
clear
D)
Functional isomerism done
clear
View Solution play_arrow
question_answer 104)
Which compound is chiral [RPMT 2002]
A)
butane done
clear
B)
1-chloro-2-methyl butane done
clear
C)
2-methyl butane done
clear
D)
2-methyl propane done
clear
View Solution play_arrow
question_answer 105)
Methyl acetate and propionic acid are [RPMT 2002]
A)
Functional isomer done
clear
B)
Structural isomer done
clear
C)
Stereoisomer done
clear
D)
Geometrical isomer done
clear
View Solution play_arrow
question_answer 106)
Which compound shows cis-trans isomerism [CPMT 2002]
A)
1-butene done
clear
B)
2-propene done
clear
C)
2-butene done
clear
D)
Benzene done
clear
View Solution play_arrow
question_answer 107)
Isomers of propionic acid are [MP PMT 2002]
A)
\[HCOO{{C}_{2}}{{H}_{5}}\] and \[C{{H}_{3}}COOC{{H}_{3}}\] done
clear
B)
\[HCOO{{C}_{2}}{{H}_{5}}\] and \[{{C}_{3}}{{H}_{7}}COOC{{H}_{3}}\] done
clear
C)
\[C{{H}_{3}}COOC{{H}_{3}}\] and \[{{C}_{3}}{{H}_{7}}OH\] done
clear
D)
\[{{C}_{3}}{{H}_{7}}OH\]and \[C{{H}_{3}}COC{{H}_{3}}\] done
clear
View Solution play_arrow
question_answer 108)
The functional isomer of ethyl alcohol is [MP PMT 2002]
A)
\[C{{H}_{3}}OC{{H}_{3}}\] done
clear
B)
\[C{{H}_{3}}COC{{H}_{3}}\] done
clear
C)
\[C{{H}_{3}}COOH\] done
clear
D)
\[C{{H}_{3}}C{{H}_{2}}CHO\] done
clear
View Solution play_arrow
question_answer 109)
Disymmetric object is one which is [Kerala (Engg.) 2002]
A)
Superimposable on its mirror image done
clear
B)
Non-superimposible on its mirror image done
clear
C)
Optically inactive done
clear
D)
Achiral done
clear
View Solution play_arrow
question_answer 110)
Geometrical isomers differ in [CBSE PMT 2002]
A)
Position of atoms done
clear
B)
Length of carbon done
clear
C)
Spatial arrangement of atoms done
clear
D)
Position of functional group done
clear
View Solution play_arrow
question_answer 111)
Which of the following hydride is capable of showing conformations [JIPMER 2002]
A)
\[N{{H}_{2}}-N{{H}_{2}}\] done
clear
B)
\[{{B}_{2}}{{H}_{6}}\]ssss done
clear
C)
\[C{{H}_{4}}\] done
clear
D)
None of these done
clear
View Solution play_arrow
question_answer 112)
Which of the following is an chiral compound [AIIMS 2002]
A)
Hexane done
clear
B)
Methane done
clear
C)
n-butane done
clear
D)
2,3,4-trimethyl hexane done
clear
View Solution play_arrow
question_answer 113)
What is the possible number of optical isomers for a compound containing 2-dissimilar asymmetric carbon atom [CPMT 1999; UPSEAT 1999, 2000, 02]
A)
2 done
clear
B)
4 done
clear
C)
6 done
clear
D)
8 done
clear
View Solution play_arrow
question_answer 114)
Which of the following compounds is optically active [Pb. PMT 2001; AMU 2002; Kerala (Med.) 2003]
A)
\[{{(C{{H}_{3}})}_{2}}CHC{{H}_{2}}OH\] done
clear
B)
\[C{{H}_{3}}C{{H}_{2}}OH\] done
clear
C)
\[CC{{l}_{2}}{{F}_{2}}\] done
clear
D)
\[C{{H}_{3}}CHOH{{C}_{2}}{{H}_{5}}\] done
clear
View Solution play_arrow
question_answer 115)
Optically active compound is [UPSEAT 2002]
A)
3-chloropentane done
clear
B)
2-chlorobutane done
clear
C)
2-chloropropane done
clear
D)
None of these done
clear
View Solution play_arrow
question_answer 116)
If a carbon atom is attached to \[-H,-OH,-COOH\] and \[-OCO{{C}_{2}}{{H}_{5}}\] number of chiral C - atoms in compound is [RPMT 2003]
A)
1 done
clear
B)
2 done
clear
C)
3 done
clear
D)
4 done
clear
View Solution play_arrow
question_answer 117)
Isomerism due to rotation round single bond of carbon-carbon is [UPSEAT 2003]
A)
Conformation done
clear
B)
Enantiomerism done
clear
C)
Diasterio isomerism done
clear
D)
Position isomerism done
clear
View Solution play_arrow
question_answer 118)
Which of the following pairs of compounds are enantiomers [CBSE PMT 2003]
A)
B)
C)
D)
View Solution play_arrow
question_answer 119)
How many structures of F is possible [IIT-JEE (Screening) 2003]
A)
2 done
clear
B)
5 done
clear
C)
6 done
clear
D)
3 done
clear
View Solution play_arrow
question_answer 120)
An enantiomerically pure acid is treated with racemic mixture of an alcohol having one chiral carbon. The ester formed will be [IIT-JEE (Screening) 2003]
A)
Optically active mixture done
clear
B)
Pure enantiomer done
clear
C)
Meso compound done
clear
D)
Racemic mixture done
clear
View Solution play_arrow
question_answer 121)
Which one of the following will not show geometrical isomerism [MP PMT 2003]
A)
B)
C)
D)
View Solution play_arrow
question_answer 122)
Isomerism shown by \[C{{H}_{3}}-{{(C{{H}_{2}})}_{3}}-O-C{{H}_{3}}\] \[C{{H}_{3}}-C{{H}_{2}}-O-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{3}}\]\[C{{H}_{3}}-\underset{\underset{C{{H}_{3}}}{\mathop{|\,\,\,\,}}\,}{\mathop{CH}}\,-O-C{{H}_{2}}-C{{H}_{3}}\] is [RPMT 2003]
A)
Position isomerism done
clear
B)
Chain isomerism done
clear
C)
Metamerism done
clear
D)
Optical isomerism done
clear
View Solution play_arrow
question_answer 123)
A compound whose molecules are superimposable on their mirror images even through they contain an asymmetric carbon atom is called [Kerala (Med.) 2003]
A)
A meso compound done
clear
B)
An erythro isomer done
clear
C)
A threo isomer done
clear
D)
a glycol done
clear
View Solution play_arrow
question_answer 124)
Of the following, the compound possessing optical isomerism [Kerala (Med.) 2003]
A)
\[C{{H}_{3}}C{{H}_{2}}OH\] done
clear
B)
\[C{{H}_{3}}CHClBr\] done
clear
C)
\[CC{{l}_{2}}BrF\] done
clear
D)
\[CC{{l}_{2}}{{F}_{2}}\] done
clear
View Solution play_arrow
question_answer 125)
Which of the following statement is wrong [EAMCET 2003]
A)
Diethyl ketone and methyl propyl ketone are position isomers done
clear
B)
2-chloro pentane and 1-chloro pentane are position isomers done
clear
C)
n-butane and 2-methyl propane are chain isomers done
clear
D)
Acetone and propinaldehyde are functional isomers done
clear
View Solution play_arrow
question_answer 126)
Dimethyl ether and ethyl alcohol are [MH CET 2004; Pb. CET 2002]
A)
Metamers done
clear
B)
Homologues done
clear
C)
Functional isomers done
clear
D)
Position isomers done
clear
View Solution play_arrow
question_answer 127)
The correct statement about the compounds A and B is [DCE 2002; UPSEAT 2004; IIT-JEE 1997; DPMT 2005]
A)
A and B are identical done
clear
B)
A and B are diastereomers done
clear
C)
A and B are enantiomers done
clear
D)
None of these done
clear
View Solution play_arrow
question_answer 128)
Ethyl acetoacetate shows, which type of isomerism [Pb. CET 2003]
A)
Chain done
clear
B)
Optical done
clear
C)
Metamerism done
clear
D)
Tautomerism done
clear
View Solution play_arrow
question_answer 129)
Which of the following will have a mesoisomer also [AIEEE 2004]
A)
2, 3-Dichloropentane done
clear
B)
2, 3-Dichlorobutane done
clear
C)
2-Chlorobutane done
clear
D)
2-Hydroxypropanoic acid done
clear
View Solution play_arrow
question_answer 130)
For which of the following parameters the structural isomers \[{{C}_{2}}{{H}_{5}}OH\] and \[C{{H}_{3}}OC{{H}_{3}}\] would be expected to have the same values ? (Assume ideal behaviour) [AIEEE 2004]
A)
Boiling points done
clear
B)
Vapour pressure at the same temperature done
clear
C)
Heat of vaporization done
clear
D)
Gaseous densities at the same temperature and pressure done
clear
View Solution play_arrow
question_answer 131)
The geometrical isomerism is shown by [AIIMS 2004]
A)
B)
C)
D)
View Solution play_arrow
question_answer 132)
Which of the following compounds will exhibit cis-trans isomerism [Kerala PMT 2004]
A)
2-butene done
clear
B)
2-butyne done
clear
C)
2-butanol done
clear
D)
Butanone done
clear
E)
Butanol done
clear
View Solution play_arrow
question_answer 133)
Which of the following compounds exhibit stereoisomerism [MP PMT 2004]
A)
2-methyl-butane I done
clear
B)
3-methyl-butanoic acid done
clear
C)
3-methyl-butyne I done
clear
D)
2-methyl butanoic acid done
clear
View Solution play_arrow
question_answer 134)
The chirality of the compound [CBSE PMT 2005]
A)
R done
clear
B)
S done
clear
C)
Z done
clear
D)
E done
clear
View Solution play_arrow
question_answer 135)
Which of the following is most likely to show optical isomerism [UPSEAT 2004]
A)
\[HC\equiv C-\underset{Cl\,}{\overset{H\,}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,-}}}\,C\equiv CH\] done
clear
B)
\[HC\equiv C-\underset{Cl}{\overset{H}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-C{{H}_{3}}\] done
clear
C)
\[HC\equiv C-\underset{Cl}{\overset{H}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-H\] done
clear
D)
\[HC\equiv C-\overset{Cl}{\mathop{\overset{|}{\mathop{C}}\,}}\,=C{{H}_{2}}\] done
clear
View Solution play_arrow
question_answer 136)
Nitroethane can exhibit one of the following kind of isomerism [DCE 2004]
A)
Metamerism done
clear
B)
Optical activity done
clear
C)
Tautomerism done
clear
D)
Position isomerism done
clear
View Solution play_arrow
question_answer 137)
\[C{{H}_{3}}CH(OH).COOH\] shows [BVP 2004]
A)
Geometrical isomerism done
clear
B)
Optical isomerism done
clear
C)
Both done
clear
D)
None done
clear
View Solution play_arrow
question_answer 138)
Which will have enantiomer [BVP 2004]
A)
\[C{{H}_{3}}C{{H}_{2}}\underset{Cl\ }{\mathop{\underset{|}{\mathop{C}}\,H}}\,-C{{H}_{3}}\] done
clear
B)
\[C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}Cl\] done
clear
C)
\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}CHC{{l}_{2}}\] done
clear
D)
None done
clear
View Solution play_arrow
question_answer 139)
The total number of acylic isomers including the stereoisomers with the molecular formula \[{{C}_{4}}{{H}_{7}}Cl\] [Pb. CET 2004]
A)
11 done
clear
B)
12 done
clear
C)
9 done
clear
D)
10 done
clear
View Solution play_arrow
question_answer 140)
The number of possible enantiomeric pairs that can be produced during mono-chlorination of 2-methylbutane is [Pb. CET 2004]
A)
3 done
clear
B)
4 done
clear
C)
1 done
clear
D)
2 done
clear
View Solution play_arrow
question_answer 141)
Which one of the following pairs represents stereoisomerism [CBSE PMT 2005]
A)
Chain isomerism and rotational isomerism done
clear
B)
Structural isomerism and geometric isomerism done
clear
C)
Linkage isomerism and geometric isomerism done
clear
D)
Optical isomerism and geometric isomerism done
clear
View Solution play_arrow
question_answer 142)
When isomers have the same structural formula but differ in relative arrangement of atoms or groups are called [CPMT 2000; KCET (Med.) 2000]
A)
Mesomers done
clear
B)
Stereoisomers done
clear
C)
Optical isomers done
clear
D)
Geometrical mesomers done
clear
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question_answer 143)
\[C{{H}_{3}}C{{H}_{2}}CH=C{{H}_{2}}\] and \[C{{H}_{3}}-CH=CH-C{{H}_{3}}\] show
A)
Chain isomerism done
clear
B)
Position isomerism done
clear
C)
Functional isomerism done
clear
D)
Metamerism done
clear
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question_answer 144)
The number of possible isomers of butene are [Kerala (Engg.) 2002]
A)
3 done
clear
B)
2 done
clear
C)
4 done
clear
D)
5 done
clear
E)
6 done
clear
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question_answer 145)
Which of the following show geometrical isomerism [BCECE 2005]
A)
\[{{C}_{2}}{{H}_{5}}Br\] done
clear
B)
\[(C{{H}_{2}}){{(COOH)}_{2}}\] done
clear
C)
\[{{(CH)}_{2}}{{(COOH)}_{2}}\] done
clear
D)
\[{{C}_{2}}{{H}_{6}}\] done
clear
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question_answer 146)
Among the following the most stable compound is [AIIMS 2005]
A)
\[cis-1,2-cyclohexanediol\] done
clear
B)
\[trans-1,2-cyclohexanediol\] done
clear
C)
\[cis-1,3-cyclohexanediol\] done
clear
D)
\[trans-1,3-cyclohexanediol\] done
clear
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question_answer 147)
Chirality of carbon compound is because of its [Kerala (Med.) 2002]
A)
Tetrahedral nature of carbon done
clear
B)
Monovalent nature of carbon done
clear
C)
Divalent nature of carbon done
clear
D)
Trivalent nature of carbon done
clear
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question_answer 148)
Which kind of isomerism is possible for 1-chloro-2-nitroethene [J & K 2005]
A)
Functional group isomerism done
clear
B)
Position isomerism done
clear
C)
\[E/Z\] isomerism done
clear
D)
Optical isomerism done
clear
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question_answer 149)
Which will give chiral molecule [DPMT 2005]
A)
\[C{{H}_{3}}COCl\xrightarrow{LiAl{{H}_{4}}}\] done
clear
B)
\[{{C}_{2}}{{H}_{5}}CHO\underset{{{H}^{+}}/{{H}_{2}}O}{\mathop{\xrightarrow{C{{H}_{3}}MgBr}}}\,\] done
clear
C)
\[{{(C{{H}_{3}})}_{2}}CH{{C}_{2}}{{H}_{5}}\xrightarrow{Cu}\] done
clear
D)
\[\begin{matrix} H \\ {} \\ C{{H}_{3}} \\ \end{matrix}\,\,\,\,\,\,C=C\,\,\,\,\,\,\,\,\begin{matrix} C{{H}_{3}} \\ {} \\ C{{H}_{3}} \\ \end{matrix}\xrightarrow{C{{l}_{2}}}\]
done
clear
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question_answer 150)
Which of the following will be chiral [J & K 2005]
A)
\[C{{H}_{3}}CHC{{l}_{2}}\] done
clear
B)
\[C{{H}_{3}}CHBrCl\] done
clear
C)
\[C{{D}_{2}}C{{l}_{_{2}}}\] done
clear
D)
\[C{{H}_{2}}ClBr\] done
clear
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question_answer 151)
Which of the following Fischer projection formula is same as \[D\]-Glyceraldehyde [Kerala CET 2005]
A)
B)
C)
D)
E)
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