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  4. List the hydrogen halide acids in decreasing order of reactivity in the following reaction R-OH + HX arrow RX + H2O

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Q. List the hydrogen halide acids in decreasing order of reactivity in the following reaction $R-OH + HX \rightarrow RX + H_2O$

Alcohols Phenols and Ethers

Solution:

The relative rate follows same order as of acidity $(HI > HBr > HCI > HF)$ and the nucleophilicity of their conjugate anion. $Xi I' > Br' > CP > F-$