Q.1
Consider the following reaction and statements : [Co(NH3)4Br2]+ + Br– → [Co(NH3)3Br3] + NH3 (I) Two isomers are produced if the reactant complex ion is a cis-isomer. (II) Two isomers are produced if the reactant complex ion is a trans-isomer. (III) Only one isomer is produced if the reactant complex ion is a trans-isomer. (IV)Only one isomer is produced if the reactant complex ion is a cis-isomer. The correct statements are : IIT mains 2018]
  • a) (I) and (III)
  • b) (III) and (IV)
  • c) (II) and (IV)
  • d) (I) and (II)
Q.2
Which of the following will show geometrical isomerism? [ DPMT 2001]
  • b) 1,2-Dibromobutene
  • a) 1-Butene
  • c) Propene
  • d) Isobutylene
Q.3
In the boat conformation of cyclohexane, the most destabilizing interaction is ...
  • a) Eclipsing
  • b) 1, 3-Diequatorial
  • c) 1,3-Diaxial
  • d) Flagpole-Flagpole
Q.4
ionParagraph question P and Q are isomers of dicarboxylic acid C4H4OBoth decolorize Br2 / H2O. On heating , P forms the cyclic anhydride. Upon treatment with dilute alkaline KMnO4 , P as well as Q could produce one or more than one from S, T and U. Q94) Compounds formed from P and Q are , respectively
ch-22_que_no-94_img_no1.png
  • a) Optically active S and optically active pair (T, U)
  • b) Optically inactive S and optically inactive pair (T, U)
  • c) Optically active pair (T, U) and optically active S
  • d) Optically inactive pair (T, U) and optically inactive S.
Q.5
n-Propyl alcohol and isopropyl alcohol are examples of ... [ BHU 1994]
  • a) Position isomers
  • b) Chain isomerism
  • c) Tautomerism
  • d) Geometrical isomerism
Q.6
ion Q97) The absolute configuration of the following compound is ...[ AIIMS 2003]
ch-22_que_no-97_img_no1.png
  • a) 2S, 3R
  • b) 2S,3S
  • c) 2R, 3S
  • d) 2R, 3R
Q.7
ion Q98) When the following aldohexose exists in its D configuration, the total number of stereoisomers in its pyranose form is
ch-22_que_no-98_img_no1.png
  • a) 1
  • b) 4
  • c) 6
  • d) 8
Q.8
ion Q99) The total number(s) of stable conformers with non-zero dipole moment for the following compound is (are) ..[ IIT advance2014]
ch-22_que_no-99_img_no1.png
  • a) 1
  • b) 2
  • c) 3
  • d) 4
Q.9
Which one of the following is the stablest structurte of cyclohexatriene? ...[ AIIMS 1994]
  • a) Chair form
  • b) Boat form
  • c) Halfchair form
  • d) Planar form
Q.10
on Q101) The total number of stereoisomers that can exist for M is [IIT advance 2015]
ch-22_que_no-101_img_no1.png
  • a) 1
  • b) 2
  • c) 8
  • d) 6
Q.11
Which of the following compounds will show metemerism? ...[ Hariyamna CEET 1996]
  • a) CH3 - CO - C2H5
  • b) C2H5 - S - C2H5
  • c) CH3 - O - CH3
  • d) CH3 - O - C2H5
Q.12
Compound(s) that on hydrogenation produce(s) optically inactive compound(s) is(are)
  • a)
    ch-22_qn-103choice_img_no1.png
  • b)
    ch-22_qn-103choice_img_no2.png
  • c)
    ch-22_qn-103choice_img_no3.png
  • d)
    ch-22_qn-103choice_img_no4.png
Q.13
The number of geometrical isomers of ... [ Manipal PMT 1999] CH3CH = CH - CH = CH - CH = CHCl is
  • a) 2
  • b) 4
  • c) 6
  • d) 8
Q.14
on Q105) The structure of D-(+)-glucose is What is the structure of L-(+)-glucose
ch-22_que_no-105_img_no1.png
  • a)
    ch-22_qn-105choice_img_no1.png
  • b)
    ch-22_qn-105choice_img_no2.png
  • c)
    ch-22_qn-105choice_img_no3.png
  • d)
    ch-22_qn-105choice_img_no4.png
Q.15
How many stereoisomers are therefor tartaric acid?
  • a) 2
  • b) 3
  • c) 4
  • d) 5
Q.16
Which of the following complex species is not expected to exhibit optical isomerism ? [ IIT Main 2013 ]
  • a) [Co(en)3]3+
  • b) [Co(en)2Cl2]+
  • c) [Co(NH3)3Cl3]
  • d) [Co(en)(NH3)2Cl2]+
Q.17
The number of geometric isomers that can exist for square planar [Pt (Cl) (py) (NH3) (NH2OH)]+ is (py = pyridine ) [ IIT Main 2015]
  • a) 2
  • b) 3
  • c) 4
  • d) 6
Q.18
on Q110) In the following structures, which two forms are staggered conformation of ethane?
ch-22_que_no-110_img_no1.png
  • a) 1 and 4
  • b) 2 and 3
  • c) 1 and 2
  • d) 1 and 3
Q.19
Which of the following compounds will exhibit geometrical isomerism? [ IIT2000]
  • a) 1-Phenyl-2-butene
  • b) 3-Phenyl-1-butene
  • c) 2-Phenyl-1-butene
  • d) 1,1-Diphenyl-1-propene
Q.20
Which of the following compounds will exhibit geometrical isomerism? [ IIT 2015]
  • a) 1 - Phenyl - 2 - butene
  • b) 3 - Phenyl - 1- butene
  • c) 2 - Phenyl - 1- butene
  • d) 1, 1 - Diphenyl - 1 - propane
Q.21
Tautomerismwill be exhibited by ..[CBSE PMT 1997]
  • a) (CH3)3CNO
  • b) (CH3)2NH
  • c) R3CNO2
  • d) RCH2NO2
Q.22
How many chiral carbon atoms are present in 2,3,4-trichloropentane? [ IIT1990]
  • a) Three
  • b) Two
  • c) One
  • d) Four
Q.23
on Q116) The absolute configuration of ..
ch-22_que_no-116_img_no1.png
  • a) (2R, 3S)
  • b) (2S, 3R)
  • c) (2S, 3S)
  • d) (2R, 3R)
Q.24
The total number of isomers for C4H8 is ...[ AIIMS 1996]
  • a) 5
  • b) 6
  • c) 7
  • d) 8
Q.25
Thenumber of optical isomers formed by hydrogenationof the compound, (CH3)2C = CHCH3 are ..[ BHU 2000]
  • a) 1
  • b) 2
  • c) 3
  • d) zero
Q.26
The number of possible acyclic structureal isomers of C4H10O is ...[ MPPMT 1998]
  • a) 5
  • b) 6
  • c) 7
  • d) 8
0 h : 0 m : 1 s