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Why is the net rotation of meso-tartaric...

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

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Because it contains an axis of symmetry
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ICSE-ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES AND TECHNIQUES -VERY SHORT ANSWER TYPE QUESTIONS
  1. In which direction does a d-isomer rotate the plane of plane polarised...

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

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

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  4. Is 1-hydroxypropanoic acid optically active ?

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

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  6. What do you understand by Lassaigne solution ?

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

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

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

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  10. What is chloroform layer test?

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  11. What is the role of reduced copper gauze in the estimation of nitrogen...

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  12. In a Victor Meyer's determination, 0.32 g of a volatile substance disp...

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  13. How is the molecular formula of a compound related to its empirical fo...

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  14. What happens when the silver salt of a carboxylic acid is ignited ?

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  15. What type of electrons get displaced in (i) inductive effect (ii) ...

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  16. What type of groups produce + l-effect ?

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  17. Which of the following are permanent effects ? I-effect, E-effect, M-e...

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  18. Amongst -OH, -CN, CI, -NO2 groups, which do exert + M-effect when pres...

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  19. What type of reaction intermediates are obtained when a covalent bond ...

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  20. What is meant by a 1^@ carbon atom ?

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