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(a) Distinguish between PhCOEt and p-MeC...

(a) Distinguish between `PhCOEt` and `p-MeC_(6)H_(4)COMe` by a chemical method.
(b) Arrange the following in the order of increasing reactivity towards nucleophilic addition reactions.
(i) `CH_(3)CHO, C_(6)H_(5)COC_(6)H_(5), CH_(3)COC_(6)H_(5),CH_(3)COCH_(3)`
(ii) `CH_(3)CHO, CF_(3)CHO, CH_(2)=CHCHO`

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ALLEN-ALKENE, ALKANE & ALKYNE -EXERCISE-4[A]
  1. In the following S(N)2 reaction

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  2. Identify (A) and (B) in the given sequence of reaction PhCH(2)CHOovers...

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  3. (a) Distinguish between PhCOEt and p-MeC(6)H(4)COMe by a chemical meth...

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

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

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  6. The second dissociation constant of fumaric acid is greater than malet...

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

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

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  9. What are A and B in the following ?

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

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

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  12. overset(AlCl(3))rarrA, What is A ?

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  13. +NBStoXundersetunderset("(iii) "H(2)O^(+))("(ii) "CO(2),)overset("(i) ...

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  14. +Br(2)underset(.^(o+)OH)overset(0^(@)C)rarrA Write down the structur...

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

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  16. Sulphanilic acid is not soluble in organic solvents. Explain ?

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  17. What is the order of basicity of the following compounds ? (i) CH(3)...

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  18. What is the order of basicity of the following compounds? (i) CH(3)N...

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  19. Unlike other aromatic amines, why is the following amine stongly basic...

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  20. In this compound which site acts as an acid and which as a base ?

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