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Write a test to detect the presence of d...

Write a test to detect the presence of double bond in a molecule.

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The presence of a double bond in a molecule is tested by treating the compound with `Br_(2)` water. The alkenes decolorises the brown colour `Br_(2)` water.
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MODERN PUBLICATION-HALOALKANES AND HALOARENES-NCERT examplar Problems (Short Answer Type Questions)
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  2. Which of the compounds will react faster in S(N)1 reaction with ""^(-)...

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  3. Why iodoform has appreciable antiseptic property?

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  4. Haloarenas are less reactive than haloalkanes and haloalkenes. Explain...

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  5. Discuss the role of Lewiis acids in the preparation of aryl bromides a...

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  6. Which of the following compounds (i) and (ii) will not react with a mi...

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  7. Allyl chloride is hydrolysed more readily than n-propyl chloride. Why ...

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  8. Why is it necessary to avoid even traces of moisture during the use of...

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  9. How do polar solvents help in the first step in S(N)1 mechanism?

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  10. Write a test to detect the presence of double bond in a molecule.

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  11. Diphenyls are potential threat to the envioronment. How are these prod...

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  12. What are the IUPAC names of the insecticide DDT and benzene hexachlori...

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  13. Elimination reaction (especially beta - elimination) are as common as ...

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  14. How will you obtain monobromobenzene from aniline ?

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  15. Aryl halides are extremely less reactive towards nucleophilie substitu...

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  16. tert-Butylbromide reacts with aq. NaOH by S(N)1 mechanism while n-buty...

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  17. Predict the major product formed when HCl is added to isobutylene, Exp...

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  18. Discuss the nature of C-X bond in the haloarenes.

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  19. How can you obtain iodoethane from ethanol when no other iodine contai...

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  20. Cyanide ion acts as an ambident nucleophille. From which end it acts a...

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