List the hydrogen halide acids in decreasing order of reactivity in the following reaction `R-OH + HX to RX + H_2O`
List the hydrogen halide acids in decreasing order of reactivity in the following reaction
`R-OH + HX to RX + H_2O`
A. HBr gtHI gtHClgtHF
B. HIgtHBrgtHClgtHF
C. HIgt HFgt HBr gt HCl
D. HIgt HCI gt HBr gt HF
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Correct Answer - B
The relative rate follows same order as of acidity (HI gt HBr gtHClgt HF) and the nucleophilicity of their coniugate anion, X- `(I^(-) gt Br^(-) gt Cl^(-) gt F^(-))`
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