When glycerol is treated with an excess of HI | vedclass

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(D) When glycerol $(CH_2OH-CHOH-CH_2OH)$ is treated with an excess of $HI$,it first undergoes substitution to form $1,2,3$-triiodopropane.This unstabl

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$2$-iodopropane

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(D) When glycerol $(CH_2OH-CHOH-CH_2OH)$ is treated with an excess of $HI$,it first undergoes substitution to form $1,2,3$-triiodopropane.This unstable intermediate loses a molecule of $I_2$ to form allyl iodide $(CH_2=CH-CH_2I)$.Allyl iodide then reacts with $HI$ to form $1,2$-diiodopropane,which further loses $I_2$ to form propene $(CH_3-CH=CH_2)$.Finally,propene reacts with $HI$ according to Markovnikov's rule to yield $2$-iodopropane $(CH_3-CH(I)-CH_3)$ as the final product.

When glycerol is treated with an excess of $HI$,it produces:

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