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Explain why ArOR ethers are cleaved to g...

Explain why ArOR ethers are cleaved to give RI and ArOH rather than Arl and ROH.

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The correct Answer is:
`S_(N)2` attack ona carbon of benzene ring does not oC Cur nor does the high energy `C_(6)H_(5)^(+)` form by an `S_(N)1` reaction. Hence Arl cannot be a product even in an excess of conc. HI.
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ALLEN-ALKENE, ALKANE & ALKYNE -EXERCISE-4[A]
  1. CH(3)CH(2)CH(2)OHoverset(PBr(5))rarr(A)overset(KOH(Alc))rarr(B)overset...

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  2. t-butyl alcohol reacts less rapidly with metalic sodium than the prima...

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  3. Explain why ArOR ethers are cleaved to give RI and ArOH rather than Ar...

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  4. Complete the following reactions: (a) (b)

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  5. Complete the following reactions: (a) (b)

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  6. Provide products in the following reactions:

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  7. Identify the products A and B giving proper explanation : (a)

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  8. Indicate bonds which are cleaved I: In basic contions II: in acidic ...

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  9. In the following S(N)2 reaction

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

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

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

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

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

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

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

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  17. What are A and B in the following ?

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

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

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

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