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Assuming the dipole moment of optically inactive isomer of 2,3 -dibromobutane is 0.8 D and the mole fraction of most stable staggered is 0.8. The approximate value of dipole moment due to less stable staggered form of 2,3 -dibromobutane will be

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Important Questions on Organic Chemistry- Some Basic Principles and Techniques

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

In the following structure, the double bonds are marked as

I, II, III

and

IV

Geometrical isomerism is not possible at the site(s):

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

(+) 2-Methylbutan-1-ol and (-) 2- Methylbutan-1-ol have different values for which property?

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

Which one of the following statements is false?

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

The number of chiral carbons in chloramphenicol is ____________.

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

The optically inactive compound from the following is:

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

The absolute configuration of

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is:

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

In assigning R-S configuration which among the following groups has highest priority?

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

Which of the following compounds produces an optically inactive compound on hydrogenation?

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

The number of stereoisomers possible for the following compound is

C H_{3} - C H = C H - C H (O H) - C H_{3}

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

The number of stereoisomer possible for the following compound is

{CH}_{3} - CH = CH - CH (Br) - {CH}_{2} - {CH}_{3}

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The number of chiral carbon centres in penicillin is _________.

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

Which of the following biphenyls is optically active?

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

Total number of isomers, considering both structural and stereoisomers, of cyclic ethers with the molecular formula

C_{4} H_{8} O

is ________

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

With respect to the conformers of ethane, which of the following statements is true?

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

Among

(a) - (d),

the complexes that can show geometrical isomerism are:

(a)

{[P t {(N H_{3})}_{3} C l]}^{+}

(b)

{[P t (N H_{3}) C l_{5}]}^{-}

(c)

[P t {(N H_{3})}_{2} C l (N O_{2})]

(d)

{[P t {(N H_{3})}_{4} C l B r]}^{2 +}

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The number of chiral centres present in threonine is _________

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Among the following compounds, geometrical isomerism is exhibited by :

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

3 -

Methyl

-

pent

- 2 -

ene on reaction with

HBr

in presence of peroxide forms an addition product. The number of possible stereoisomers for the product is

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

For the given compound X, the total number of optically active stereoisomers is ____.

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

Which of the following compounds will exhibit geometrical isomerism?

Assuming the dipole moment of optically inactive isomer of 2,3 -dibromobutane is 0.8 D and the mole fraction of most stable staggered is 0.8. The approximate value of dipole moment due to less stable staggered form of 2,3 -dibromobutane will be

Important Questions on Organic Chemistry- Some Basic Principles and Techniques

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