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TS EAMCET · Chemistry · Alcohols Phenols and Ethers

The correct order of reactivity of hydrogen halides with ethyl alcohol is

  1. A \(\mathrm{HF}>\mathrm{HCl}>\mathrm{HBr}>\mathrm{HI}\)
  2. B \(\mathrm{HCl}>\mathrm{HBr}>\mathrm{HF}>\mathrm{HI}\)
  3. C \(\mathrm{HBr}>\mathrm{HCl}>\mathrm{HI}>\mathrm{HF}\)
  4. D \(\mathrm{HI}>\mathrm{HBr}>\mathrm{HCl}>\mathrm{HF}\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(\mathrm{HI}>\mathrm{HBr}>\mathrm{HCl}>\mathrm{HF}\)

Step-by-step Solution

Detailed explanation

Among hydrogen halides, as the size of halide ion increases, its reactivity towards ethyl alcohol also increases. Thus, the order of reactivity of hydrogen halides is \[ \mathrm{HI}>\mathrm{HBr}>\mathrm{HCl}>\mathrm{HF} \]