Question

7. Is calcium chloride a possible reagent for removing water from an alcohol? Explain your answer 2] 8. How would you cause the reversible reaction RCI + HOH FROH + HCI to proceed to the right? 9. From which of the following compounds, a or b, can the hydrogen in the OH radical be more easily removed? (a) CHOH (b) OH Explain your answer. [1]

Answer 1

7) As because first step is protonation step so we require H⁺ ion hence we use acid dehydrating catalyst like concentrated H₂SO₄ , H₃PO₄ etc

So Calcium chloride is not the suitable reagent for the dehydration of alcohol

8) To proceed the rection to be right :-

a) Increase the concentration of RCl

b) Remove any of the product

c) use tertiary alkyl chloride

9) Ethanol is more acidic than cyclohexanol

Reason :- The more electrondonating group are attached to the hydroxyl carbon, the less stable the resulting alkoxide anion (the oxygen would become more negatively charged), and the less acidic. So then a secondary alcohol would be less acidic than a primary alcohol, and cyclohexanol would be less acidic than ethanol