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What is the purpose of anhydrous ZnCl2 i...

What is the purpose of anhydrous `ZnCl_2` in the preparation of haloalkanes from alcohols ?

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`ROH +HCl overset("Anhyd .ZnCl_2)to RCl +H_2 O`
The reaction of `1^@ and 2^@`. alcohols with HCl require the presence of anhydrous `ZnCl_2` which acts as a Lewisacid catalyst.
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BETTER CHOICE PUBLICATION-HALOALKANES AND HALOARENES-QUESTIONS
  1. Why is Wurtz reaction not suitable for the preparation of odd number a...

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  2. Benzyl chloride is more reactive than chlorobenzene towards nucleophil...

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  3. Write the following reactions : Carbylamine reaction.

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  4. Write following name reactions : Riemer Tiemann reactioin.

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  5. Explain the following : Hoffmann amonolysis

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  6. Write the following reactions : Williamson’s synthesis

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  7. Explain the following reactions: Diazotisation reaction.

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  8. Alkyl halides are amongst the most reactive of the organic compounds. ...

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  9. Alkyl halides are regarded as synthetic tools in the hands of a chemis...

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  10. How do the products differ when ethyl bromide reacts separately with a...

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  11. What is the purpose of anhydrous ZnCl2 in the preparation of haloalkan...

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  12. What happens when : Ethyl chloride is treated with (aq) KOH.

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  13. What happens when : Methyl chloride is treated with KCN.

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  14. Methyl bromide is treated with sodium in the presence of dry ether.

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  15. What happens when : n-butyl chloride is treated with alcoholic KOH.

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  16. What happens when an ethyl bromide reacts with : Ag NO2

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  17. What happens when an ethyl bromide reacts with : Ag CN (alc.) ?

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  18. Haloalkanes undergo nucleophilic substitution reactions while haloaren...

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  19. How aryl halides react with sodium metal? Explain why alkyl halides sh...

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  20. The presence of electron withdrawing group increases the reactivity of...

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