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(a) The double bond in aldehydes and ket...

(a) The double bond in aldehydes and ketones is reactive towards nucleophilic reagents like `CN^(-)` whereas that in an alkene is not.
(b) Alkenes undergo electrophilic addition whereas aldehydes and ketones undergo nucleophilic addition.

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ALLEN-ALKENE, ALKANE & ALKYNE -EXERCISE-4[A]
  1. Arrange the following in decreasing order of nucleophilic addition C...

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  2. Compound X with molecular formula C(6)H(10)O form a semicarbazone and ...

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  3. (a) The double bond in aldehydes and ketones is reactive towards nucle...

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  4. Complete the following equations giving the structures of the major or...

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  5. Complete the following equation: (b)

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  6. Two organic compounds (A) and (B) have same empirical formula CH(2)O. ...

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  7. CH-=CHoverset(NaNH(2))to[A]overset(CH(3)Br)to[B]

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  8. A comopound has two isomers (A) and (B) of formula C(5)H(10)O. Isomer ...

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  9. Give reasons for the following : 'Carbon-oxygen bond lengths in form...

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  10. Assertion:- pKa(1) of fumaric acid is greater than maleic acid. Reas...

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  11. Which is stronger conjugate base in each pair ? (A) overset(-)OH or ...

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  12. Which acid of each pair shown here would you expect to be stronger? ...

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  13. What are A and B in the following ?

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  14. In the following reaction, trace the position of isotopic O^(18) CH(...

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  15. Write the reagents to carry out following conversions: CH(3)overset(...

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  17. What are X and Y ?

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  18. Write down the structure of A? What is the use of A ?

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  19. Arrange the following in decreasing basic order with proper reasoning.

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  20. Sulphanilic acid is a/an:

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