Which of the following is optically active?

  • Alanine

  • 2-butanol

  • Lactic acid

  • All of these

The isomerism which exists between CH3CHCl2, and CH2ClCH2Cl is:

  • Chain            

  • Functional

  • Position isomerism      

  • Metamerism

Lactic acid is:

  • propionic acid

  • β-hydroxypropanoic acid

  •  α-hydroxypropanoic acid

  • none of the above

On monochlorination of n-pentane, the number of structural isomers formed is:

 

  • 4

  • 3

  • 2

  • 1

The compound which exhibits optical isomerism is:

  • CH3CHOHCH3

  • (CH3)2CHCH2CH3

  • CH3CHClCH2CH3

  • CH3CCl2CH2CH3

Total number of isomeric aldehydes and ketones that can exist with the molecular formula C5H10O are :

  • 5                       

  • 8

  • 6                       

  • 7

The types of a functional group can be present in an amine with the formula C3H9N is-

  • 1             

  • 2

  • 3             

  • 4

Nitroethane can exhibit one of the following kind of isomerism:

  • metamerism             

  • optical activity

  • tautomerism             

  • position isomerism

The type of isomerism observed in urea molecule

  • chain

  • position

  • geometrical

  • functional

Which type of strain is present in fully eclipsed conformation of butane?

  • Angle strain            

  • Steric strain

  • Both (1) and (2)         

  • Neither (1) and (2)

2-Methylpent-3-enoic acid shows:

  • Optical isomerism       

  • Geometrical isomerism

  • Both (1) and (2)        

  • None of these

Number of possible isomers of glucose are:

  • 10

  • 14

  • 16

  • 20

The total number of isomeric carbocations possible for the formula C4H9+ is:

  • 3

  • 4

  • 2

  • 5

Which class of compounds can exhibit geometrical isomerism?

  • C6H5CH=NOH

  • CH3CH =CHCH3

  •  

  • All of the above

Ethyl acetoacetate exhibits:

  • optical isomerism                

  • geometrical isomerism

  • tautomerism                   

  • enantiomerism

Which of the following does not show stereo isomerism?

  •  

  •  

  •                H              |CH3—C—COOH              |              H       

  • (4)         COOH        |H—C—OHH—C—OH       |     COOH

Only two isomeric monochloro derivatives are possible for:

  • n-butane

  • 2,4-dimethylpentane

  • benzene

  • 2-methylbutane

Keto-enol tautomerism is observed in :

  •  

  •  

  •  

  • None of the above

Isomerism among compounds due to migration of a proton is known as:

  • Geometrical       

  • Optical

  • Tautomerism       

  • Position

The number of different amines corresponding to the formula C3H9N is:

  • 2

  • 3

  • 4

  • 5

Alkyl cyanide R-C≡N and alkyl isocyanides  are-

  • Tautomers

  • Metamers

  • Functional isomers

  • Geometrical isomers

Hydrogen cyanide and hydrogen isocyanide are:

  • tautomers

  • positional isomers

  • metamers

  • chain isomers

The non-staggered form(s) of ethane among the following is-

  •  

  •  

  •  

  • None of these

The optically active compound among the following is-

  • Glycerine                 

  • Acetaldehyde

  • Glyceraldehyde             

  • Acetone

Which of the following acids shows stereoisomerism?

  • Oxalic acid            

  • Tartaric acid

  • Acetic acid            

  • Formic acid

A racemic mixture is a mixture of:

  • meso and its isomers

  • d- and its l-isomers in equal proportions

  • d- and l-isomers in different proportions

  • meso and d-isomers

The isomeric cis-2-butene and trans-2-butene can be distinguished on the basis of:

  • their colour

  • their reduction products

  • the products they give on ozonolysis

  • the products they give on addition to bromine

How many optically active forms are possible for a compound of the formula,

CHO.CHOH.CHOH.CHOH.CH2OH?

  • 2

  • 4

  • 3

  • 8

The intermediate during the addition of HCl to propene in the presence of peroxide is:

  •  CH3CH2C+H2

  •  CH3C∙HCH2Cl

  •  CH3C+ HCH3

  •  CH3CH2C∙H2

The number of isomers for the compound with molecular formula C2BrCIFI is:

  • 3

  • 4

  • 5

  • 6

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