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Out of cis and trans isomers, which isom...

Out of cis and trans isomers, which isomer is more stable ?

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Which tautomer isomer is more stable :

How many statements are true for the following pair of compounds ? Cis Trans (i) The dipole moment of trans isomer is zero (ii) The boiling point of cis isomer is more than trans isomer (iii) Cis isomer is more stable than the trans isomer (iv) These are also called configurational diastereomers (v) These are readily interconvertible under normal conditions (vi) The melting point of trans isomer is more than the cis isomer (vii) Trans isomer is more soluble than cis isomer in polar solvents

Stereoisomerism occurs when the bond connectivity is same but the spatial arrangement of more than one type is possible. Stereoisomerism finds vast use in orgaic chemistry, mainly biochemistry as all the biomolecules, are generally stereospecific in their actions. Stereoisomerism in limited not only to organic compounds but also to inorganic compounds, mainly in co-ordination complexes. Stereoisomers include cis and trans isomers, chiral isomers, compound wilth different conformation of chelate rings and other isomers that differ only in the geometry of attachement of the metal ion. Select the correct option for tertraamminedichlorocobalt (III) ion, the trans isomer

Stereoisomerism occurs when the bond connectivity is same but the spatial arrangement of more than one type is possible. Stereoisomerism finds vast use in orgaic chemistry, mainly biochemistry as all the biomolecules, are generally stereospecific in their actions. Stereoisomerism in limited not only to organic compounds but also to inorganic compounds, mainly in co-ordination complexes. Stereoisomers include cis and trans isomers, chiral isomers, compound wilth different conformation of chelate rings and other isomers that differ only in the geometry of attachement of the metal ion. Select the incorrect statement:

Out of benzyl and ethyl carbocation which is more stable?

Decalin is an example of fused bicyclic systems where two six membered rings share common C-C bond. There are two possible arrangements : trans and cis-decalin. (i) Draw cis and trans decalin using the chair form for these species (ii) Which isomer is more stable? Give explanation.

Explain why cis and trans isomers do not change into one another under ordinary conditions?

The ratio of cis and trans-isomers of the complex [Ma_(2)bcde]^(n+-) is:

The ratio of cis and trans-isomers of the complex [Ma_(2)bcde]^(n+-) is:

ICSE-ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES AND TECHNIQUES -VERY SHORT ANSWER TYPE QUESTIONS
  1. What type of change is involved in tautomerism ?

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  2. Is geometrical isomerism shown by alkynes ?

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  3. Out of cis and trans isomers, which isomer is more stable ?

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  4. Can a compound of the type axC = Cay show geometrical isomerism ?

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  5. Explain the cause of geometrical isomerism and state the properties of...

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  6. Do geometrical isomers possess similar physical properties?

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  7. Name the prism passing through which ordinary light changes into plane...

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  8. Name the instrument used to measure the optical activity of a substanc...

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  9. Is the letter H chiral in nature ?

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  10. When is a molecule said to be chiral?

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  11. What is the necessary and sufficient condition for a molecule to be op...

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  12. In which direction does a d-isomer rotate the plane of plane polarised...

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  13. What is the effect of a dl-mixture on plane polarised light?

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  14. Why is the net rotation of meso-tartaric acid zero ?

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  15. Is 1-hydroxypropanoic acid optically active ?

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  16. What is soda-lime test for detection of nitrogen in a compound?

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  17. What do you understand by Lassaigne solution ?

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  18. In the Lassaigne’s test for nitrogen in an organic compound, the Pruss...

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  19. For testing halogens in an organic compound with AgNO(3) solution, sod...

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  20. During sodium extract preparation for Lassaigne's test both N and S pr...

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