Single Choice

The ease of dehydrohalogenation for different halogens is in the order:

Aiodide > bromide > chloride
Correct Answer
Bbromide > iodide > chloride
Cchloride > bromide > iodide
Diodide > chloride > bromide

Solution

$$I^-$$ is most stable due to large size and weakest bond due to its longest bond length.

For the given halogen, this order will be:

$$ R−I > R−Br > R−Cl $$

So, option A is correct.

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