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How will you account for the following? ...

How will you account for the following?
(i) Methyl phenyl ether reacts with HI to give phenol and methyl iodide and not iodobenzene and methyl alcohol.
(ii) The order of reactivity of halogen acids towards cleavage of ethers is: `HIgtHBrgtHCl.`

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Phenyl methyl ether (on anisole) reacts with HI to give phenol and methyl iodide and not iodobenzene and methyl alcohol. Justify .

Reactivity of halogen acids towards ethers follows the sequence : HI gt HBr gt HCl

Account for the product formed when phenyl methyl ether reacts with HI.

For the cleavage of ethers by halogen acids, the order of reactivity of halogen acids is :

PRADEEP-ALCOHOLS, PHENOLS AND ETHERS-ADDITIONAL QUESTIONS (SHORT ANSWER QUESTIONS)
  1. How can diethyl ether be prepared from the following? (i) ethyl iodi...

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  2. How will you convert phenol to acetophenone?

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  3. What are symmetrical and unsymmetrical ethers? How can diethyl ether b...

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  4. Preparation of unsymmetrical ethers by williamson synthesis requires p...

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  5. Outline a scheme for the synthesis of each of the following: (i) Eth...

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  6. Di-tert butyl ether is rapidly cleaved by hydrogen chloride at room te...

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  7. Give reaction for the following : (i) The boiling points of ethers a...

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  8. How will you account for the following? Ethers possess a net dipole ...

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  9. How does diethyl ether reacct with: (i) HBr at 373K. (ii) HI at 37...

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  10. (a) How does anisole react with: (i) Br(2) in CS(2) (ii) Conc. HNO...

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  11. Write equation of the nitration of anisole.

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  12. Discuss the following: (i) Cleavage off ethers by acids. (ii) Elec...

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  13. How will you account for the following? (i) Methyl phenyl ether reac...

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  14. Explain why cleavage of phenyl alkyl others with HBr always produces p...

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  15. under what conditions do ethers from oxonium salts?

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  16. Write the chemical equations, when: (i) Benzyl phenyl ether reacts w...

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  17. Complete the following reactions: (i) C(6)H(5)ON a+CH(3)Br overset(D...

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  18. Give simple chemical tests to distinguish between Butanal and butan-2-...

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  19. Why are ethers used as solvents?

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  20. Describe the following : (i) Reimer -Tiemann reaction (ii) Kolbe's...

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