IUPAC name of the compound,  is-

  • But-2-en-1-ol                

  • 1-Hydroxy but-1-ene

  • 4-Hydroxy butene-3           

  • But-1-en-1-ol

IUPAC name of the compound,  is:

  • 1-chloro-2,3-epoxypropane

  • 3-chloro-1,2-epoxypropane

  • 1-chloroethoxymethane

  • None of the above

The correct IUPAC name of (C2H5)4C is-

  • Tetraethyl methane         

  • 2-Ethylpentane

  • 3,3-Diethylpentane         

  • None of the above

IUPAC name of  is-

  • But-2-en-2,3-diol

  • Pent-2-en-2,3-diol

  • 2-Methylbut-2-en-2,3-diol

  • Hex-2-en-2,3-diol

The IUPAC name of the compound CH3CONH(Br) is:

  • 1-Bromoacetamide

  • N-Bromoethanamide

  • Ethanoyl bromide

  • None of the above

The dihedral angle between two C-H bonds in the staggered conformation of ethane  is            

  • 60° 

  • 180°

  • 0° 

  • 120°

Isomers of a substance must have the same-         

  • Structure

  • Physical properties

  • Chemical properties

  • Molecular formula

But-2-ene exhibits cis-trans-isomerism due to

  • rotation around C2-C3 double bond

  • rotation around C3-C4 sigma bond

  • rotation around C1-C2 bond

  • restricted rotation around C=C bond

How many stereoisomers does this molecule have?           

CH3CH=CHCH2CHBrCH3

  • 4       

  • 6       

  • 8       

  • 2

The general formula for cycloalkanes is:

  • CnH2n+2 

  •   CnH2n

  • CnH2n-2  

  • CnH2n+1

If optical rotation produced by the compound (i) is +52° then that produced by that the compound (ii) is:

  • -52°

  • +52°

  • 0°

  • unpredictable

Rotation of plane polarized light can be measured by:

  • manometer

  • calorimeter

  • polarimeter

  • viscometer

Which one of the following can exhibit cis-trans-isomerism?

  • CH3-CHCl-COOH

  • H-C≡C-Cl

  • Cl-CH=CHCl

  • ClCH2-CH2Cl

Geometrical isomers differ in :

  • Position of functional group.

  • Position of atoms.

  • Length of carbon chain.

  • Spatial arrangement of atoms.

Fisher projection indicates:

  • horizontal substituents above the plane

  • vertical substituents above the plane

  • both horizontal and vertical substituents below the plane

  • both horizontal and vertical substituents above the plane

Select the correct option:-

​      

  • resonating structures

  • tautomers

  • geometrical isomers

  • optical isomers

Which of the following compounds is not chiral ?

  • DCH2CH2CH2Cl

  • CH3CH2CHDCl

  • CH3CHDCH2Cl

  • CH3CHClCH2D

Which pair represents chain isomers?

  • CH3CHCl2 and ClCH2CH2Cl

  • Propyl alcohol and Isopropyl alcohol

  • 2-Methylbutane and Neopentane

  • Diethyl ether and Dipropylether

Number of monochlorinated products (excluding stereo-isomers) obtained from the given reaction are :

                           

  •   4                           

  •   5                     

  •   6                               

  •   7                                         

Which of the following pairs are enantiomers?                

  •  

  •  

  •  

  •  

How many structural isomers are possible for the compound having molecular formula C3H5Br3?

  • 5                   

  • 4

  • 6                   

  • 8

Which of the following is an optically active compound?        

  • 1-butanol 

  • 1-propanol

  • 2-chlorobutane 

  • 4-hydroxybutanal

In the following, the most stable conformation of n-butane is                

  •  

  •  

  •  

The number of stereo isomers for 3-pentene 2-ol

 

  • 2 

  • 4 

  • 3 

  • 5

The most stable configuration of n-butane will be                

  • skew boat

  • eclipsed

  • gauche 

  • staggered-anti

The compound having molecular formula C4H10O can show-

  • Metamerism

  • Functional isomerism 

  • Positional isomerism

  • All of the above

Tautomerism will be exhibited by                 

  • (CH3)3CNO               

  • (CH3)2NH

  • R3CNO2                   

  • RCH2NO2

The total number of structural isomers is possible for C5H11Cl is-

  • 6 

  • 8

  • 10 

  • 12

 Which of the following compounds will exhibit cis-trans (geometrical) isomerism?

  • but-2-ene                             

  • Butanol

  • but-2-yne                             

  • buten-2-ol   

The number of possible isomers of the aromatic compound with molecular formula C7H8O are :        

  • 3             

  • 5

  • 7             

  • 9

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