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Earn 100

Explain the erythro and threo form with suitable example.

Important Questions on Organic Chemistry- Some Basic Principles and Techniques

EASY
Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism
Which one of the following statements is false?
MEDIUM
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
EASY
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
The absolute configuration of

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism
Which of the following biphenyls is optically active?
EASY
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?
MEDIUM
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?
HARD
Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism
Among a-d, the complexes that can show geometrical isomerism are:
a PtNH33Cl+
b PtNH3Cl5-
c PtNH32ClNO2
d PtNH34ClBr2+
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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 number of stereoisomers possible for the following compound is

CH3-CH=CH-CHOH-CH3
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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
Among the following, the conformation that corresponds to the most stable conformation of meso-butane-2,3-diol is
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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism
The number of chiral carbon centres in penicillin is _________.
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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. 

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 Geometrical isomerism is not possible at the site(s):
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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 C4H8O is ________
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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism
Among the following compounds, geometrical isomerism is exhibited by :
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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 stereoisomer possible for the following compound is CH3-CH=CH-CH(Br)-CH2-CH3
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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism
Which of the following compounds will exhibit geometrical isomerism?
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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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